Typo headphones: Typo Turn It Up Headphones Metallic Geo


Microsoft Bluetooth TYPO HEADPHONES Avrcp Transport driver download and product parameters information

The following is driver installation information, which is very useful to help you find or install drivers for TYPO HEADPHONES Avrcp Transport.For example: Hardware ID information item, which contains the hardware manufacturer ID and hardware ID. These two ID values are unique and will not be duplicated with other hardware. According to these two ID values, the matching driver information can be accurately found. This method is more effective than any others, and 100% correct.There are many other information items that you can use to find the driver version information and the required driver files.

The name of the driver type in the system is: Bluetooth, and the drive type GUID is: {e0cbf06c-cd8b-4647-bb8a-263b43f0f974}.




JBL E45BT Avrcp Transport

SBL 4. 1 A1 Avrcp Transport

My_Radiosat Avrcp Transport


Philips BT6900 Avrcp Transport

















BTHENUM\{0000110e-0000-1000-8000-00805f9b34fb}, BTHENUM\{0000110e-0000-1000-8000-00805f9b34fb}_GENERIC

BTHENUM\{0000110c-0000-1000-8000-00805f9b34fb}, BTHENUM\{0000110c-0000-1000-8000-00805f9b34fb}_GENERIC

Mpow 059 Bluetooth Headphones are on sale at Amazon

Yahoo Life is committed to finding you the best products at the best prices. We may receive a share from purchases made via links on this page. Pricing and availability are subject to change.

These slick headphones are just $23 — not a typo. (Photo: Amazon)

Tired of getting wound up in an annoying headphone cord, but don’t want to shell out big bucks on some fancy-schmancy $400 wireless headphones? We hear you!

These Mpow 059 Bluetooth Headphones — a comfy over-the-ear set — have become a staff fave at Yahoo Life, thanks to their brilliant sound quality and excellent fit. 

Right now, the wallet-friendly wireless headphones are on sale for just $23, or $11 off with the on-page coupon at Amazon. That’s nearly a 35 percent savings (their lowest price ever!). They’re popular too, earning a flawless five-star rating from more than 40,000 reviewers.

If you have Amazon Prime, you’ll get free shipping, of course. Not yet a member? No problem. You can sign up for your free 30-day trial here. (And by the way, those without Prime still get free shipping on orders of $25 or more. )

Great sound, great fit

The Mpow 059s deliver exceptional audio clarity and booming bass at a shockingly low price without cutting corners. They feel oh-so-luxe: cushy and soft memory-protein ear cushions were designed with comfort in mind.

“These headphones have some great qualities,” wrote a delighted five-star reviewer. “I would recommend them for comfort on the ears for long periods of time, excellent sound quality, especially when considering the price, and the fact that they do cancel out some of the outside noises making the listening experience more enjoyable.”

Be free! (Photo: Amazon)

Tough and tireless

These premium headphones, which can last 20 hours on a single charge, also have a long 33-foot Bluetooth range. This means you can set your device down and walk around listening to your favorite music and podcasts without interruption or audio degradation. You’ll love being able to take calls and move around without being tethered to your phone or tablet.

Story continues

Some Amazon reviewers have put this feature to the test: “Sometimes I’ll go downstairs and make a sandwich…Good to go at probably around 40 to 50 feet. I’ve even stepped outside to the back deck…”

At just $23, the MPow 059 headphones are an exceptional value, with their intelligent design, superior battery life, long Bluetooth range, impressive audio quality and deep, dance-inducing bass. Some shoppers say they even rival Bose.

“I love these headphones,” raved another five-star reviewer. “I own a set of wired Bose headphones, and my Mpow headphones are nearly as good in sound quality and comfort! I love that these are Bluetooth headphones, and they easily connected with my iPhone. The battery life on these is fantastic, which is one reason why I purchased these.”

Sounds good to us. Really good.

The reviews quoted above reflect the most recent versions at the time of publication.

Read More from Yahoo Life:

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Typo Woodgrain Headphones – Multi

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Why Are My Bluetooth Headphones Flashing Red And Blue? (Solved)

The blinking red and blue lights on your Bluetooth headphones indicate a common Bluetooth problem that can be solved in minutes.

Blue light blinking on the Jabra 85H

Do your Bluetooth headphones just suddenly stop working and start flashing red and blue?

Bluetooth headphones eliminate all the inconveniences of tangly wired headphones, but they can be frustrating to use at times.

You might find yourself tearing your hair out trying to figure out what these blinking lights mean and what you can do to get your headphones to start working again.

To make matters worse, Bluetooth headphones only have a few controls, typically power and volume buttons. Which ones exactly do you need to press to bring your headphones back to life?

In this article, we tell you what those blinking red and blue lights and other light patterns mean. You’ll also learn what you need to do to solve the issues indicated by these lights.

Quick Links:

(Click to jump to section)

  1. Why Are My Bluetooth Headphones Flashing Red and Blue?
  2. Why Do Bluetooth Headphones Have a Pairing Mode?
  3. How Does Bluetooth Pairing Work?
  4. Why Bluetooth Headsets Blink Red and Blue
  5. Why Are My Wireless Headphones Blinking Blue, Red, or Amber?
  6. How to Pair Bluetooth Headphones to Get the Best Connection

Why Are My Bluetooth Headphones Flashing Red and Blue?

Bluetooth headphones have status lights. These tell you what’s going on with the headphones.

If, for example, the status light is a constant blue, it usually means the headphones are connected with your smartphone, laptop, or speaker. They’re ready to use.

Different headset brands have different status lights.

But in general, if your headphones are flashing red and blue, it means they are unpaired from your device.

Unpaired headphones means they are not connected with any other device. They are in pairing or discovery mode. This means your headphones are looking for another Bluetooth device to connect with.

Sometimes, headphones in pairing mode are trying but failing to connect with another device. They’re running into an error during pairing, so they blink red and blue to let you know.

If this happens, there are many ways to fix the red and blue flashing lights.

Why Do Bluetooth Headphones Have a Pairing Mode?

Bluetooth headphones have a pairing mode because it is what lets them connect with other devices.

Pairing mode typically lasts anywhere from 30 seconds to two minutes. This puts the headphones in a time window where it can be “discovered” by other Bluetooth devices.

There are a few benefits to having a pairing mode:

  • It saves battery on both devices because they’re not always looking for other devices to pair with.
  • It allows both devices to establish a secure connection with each other.
  • It lets you save the pairings you prefer so that you don’t have to go through the same process each time you use your headphones.

Types of Bluetooth pairing mechanisms

Most Bluetooth devices use the two most common pairing mechanisms, legacy pairing and a newer mechanism called Simple Secure Pairing (SSP).

Legacy Pairing

Legacy pairing is used in devices running on Bluetooth 2.0 and older versions.

It requires you to enter the correct PIN code into both devices being paired.

Most Bluetooth headphones that use legacy pairing have a fixed PIN code, such as 0000 or 1234. You can find the PIN code in the headset’s manual.

Secure Simple Pairing

SSP is a more complex mechanism that uses elliptic curve cryptography to connect Bluetooth devices.

It is used in newer devices running on Bluetooth 2.1 and above, which is what most commercial headphones, smartphones and consumer devices use today.

This mechanism needs a confirmation on one device to establish a connection, but you normally don’t have to enter a PIN code in any of the devices.

If one of the devices uses Bluetooth 2.0 or older, the connection will still use legacy pairing. In this case, you will need to use a PIN code.

Once the confirmation is done, both devices will automatically connect with each other.

Connections are then stored in your smartphone or laptop. This allows both devices to automatically connect with each other in the future with no input from you.

If you ever purposefully remove or ‘forget’ a device, the PIN or pairing process will need to be followed in order to reconnect your headphones again for successful use.

How Does Bluetooth Pairing Work?

Bluetooth headphones paired with smartphones (From Unsplash.com)

Pairing between two Bluetooth devices is done so they can work together.

A connection is established when both devices create a trusted relationship with each other using a link key. This is used to confirm both devices to each other.

The link key is also used to generate a temporary encryption key to protect the data being transmitted across both devices.

As soon as a connection is made, the encryption key is discarded. However, both devices keep the link key. They use this to re-confirm each other in future connections.

Paired devices will automatically connect with each other as long as they’re turned on and are within the usual Bluetooth range of 33 feet or 10 meters.

Bluetooth devices can have and store many connections. When you want to use one connection in a list of multiple connections, you simply have to choose that connection.

The process of pairing your Bluetooth headphones with your device is simple:

  1. On your smartphone or laptop, open the Bluetooth settings and turn Bluetooth on.
  2. On your headphones, press the pairing button. Look at the manual to find where the pairing button is.
  3. Wait for the status lights to blink red and blue. This tells you the headphones are now in pairing mode.
  4. On your device, you will find the list of Bluetooth devices found now includes your headphones.
  5. Select the name of your headphones to connect.

Even if multiple devices become available, your device will only establish a Bluetooth connection with the device that you choose – unless it was previously connected and automatically connects.

In some cases, you may have to unpair some of the previously connected devices if the connection with your headphones is failing to establish.

If you unpair your headphones from your device or if you do a hard reset, you will have to go through the pairing process again if you want to use them together in the future.

How to stop devices from automatically pairing with each other

To prevent devices from automatically pairing with each other, you need to make your smartphone or laptop “forget” the headphones.

Here are the steps to accomplish this:

  1. Go to your device’s Bluetooth settings.
  2. Go to the list of paired devices.
  3. If you’re using a smartphone, tap Options next to the device you want to unpair. Select Remove or Forget.
  4. On a PC or Mac, right-click on the device and click Remove or Forget.

Why Do Bluetooth Headsets Blink Red and Blue

A pair of Bluetooth headphones (From Unsplash.com)

There are a few reasons why your Bluetooth headset is blinking red and blue. As mentioned previously, this is usually due to pairing mode.

But, there are also a couple of other possible reasons – which we’ll cover below.

The headphones are in pairing or discovery mode

The most common reason why your Bluetooth headset is flashing red and blue is it is unpaired. The headphones are looking for a connection.

It’s possible you may have accidentally held down the pairing button. This puts the headphones in pairing mode, which makes the status lights blink red and blue.

The solution is to pair your headphones with the other device again.

  1. Turn off Bluetooth for both devices.
  2. Turn on Bluetooth for both devices again.
  3. Let your smartphone or laptop discover your headphones. On the Bluetooth settings screen, you should see the name of your headphones listed.
  4. Tap or click the name of your headphones and choose Connect.


This should pair your headphones with your device. It will also stop the status lights from flashing red and blue.

If it doesn’t, the headphones likely have an error. In this case, you’ll need to do a hard reset.

The headphones have an error and need a hard reset

If your headphones have an error, you may need to do a hard reset. This clears your previous settings and reverts the headset back to its original state when it was shipped.

The headphones are not connected to each other

This usually happens with true wireless headphones. You may have accidentally changed the settings on your headphones to unlink them from each other.

One way to find out if your headphones are disconnected from each other is if the sound comes through only one channel.

In this case, you have a few options. You can:

  • Go to your device’s settings and adjust the volume balance of the left and right headphones.
  • Make sure the headphones are not playing in mono mode.
  • If none of the above works, unpair the headphones, turn them off, and turn them back on. Pair the headphones with your device again.
  • If it still doesn’t work, do a hard reset as explained above.

Why Are My Wireless Headphones Blinking only Blue, Red, Green or Amber?

Jabra 85H flashing green light


Now that we’ve got the flashing red and blue lights out of the way, what about other status light colors? If your headphones flash blue, red, amber, orange, or red, here’s what it usually means.

Why are my wireless headphones blinking blue?

If your wireless headphones are blinking blue, it could mean a few things.

  • A constant blinking blue light can indicate a healthy connection.
  • A slow pulsing blue light can mean the headphones are in pairing mode. The most common light pattern for pairing mode is blinking red and blue. However, you may still want to try pairing your headphones with another device to see if the pulsing blue light stops once it is connected.
  • It can mean interference. If this is the case, the solution is simply to move away from the object that causes interference, such as a Wi-Fi router or a microwave oven.
How to stop headphones from showing a constant, blinking blue light

If the blinking blue light indicates a healthy connection, you have nothing to worry about.

But the constant flashing can be annoying, especially if you’re in a dark room and the headphones are causing too much attention to themselves.

If the headphones have an app, you may find an option that disables the status lights.

Some headphone brands, like Sennheiser, let you turn off the status lights using the hardware controls.

  1. Put the headphones in pairing mode. The status lights will flash red and blue.
  2. Press the volume down button.
  3. Turn off the headphones.
  4. Turn them on again.
  5. Connect your headphones with your device.

If all else fails, you can always use tape as a last resort to cover the light.

Why are my headphones blinking amber or red?

Jabra 85H flashing amber light

If your headphones are flashing red or amber, it usually means the battery is running low.

An orange light may mean the battery is at a medium level and you need to charge the headphones in a few hours. It may also mean that the headphones are currently charging.

If it’s red, you likely only have a few minutes left before your headphones run out of power. The quick solution is to charge your headphones.

How to Pair Bluetooth Headphones to Get the Best Connection

Bluetooth headphones on office table (From Pexels.com)

Pairing Bluetooth headphones with a smartphone or laptop is easy.

But there are some common reasons that can prevent you from getting a good connection, such as:

  • The devices you want to pair run on different Bluetooth versions.
  • The devices you want to pair are connected to other devices.
  • You don’t understand the specific pairing process for your brand of headphones.

Top tips for pairing Bluetooth devices quickly and efficiently

If you do the following, you’re almost always assured of a quick, efficient pairing and a strong, solid Bluetooth connection.

1. Make sure Bluetooth is on and your headset is in pairing mode.

Go to your smartphone or laptop’s settings and turn on Bluetooth. This will allow your device to actively search for other devices within its range. Also, turn on your headphones and press the pairing button.

2. Make sure the devices are within close proximity.

Bluetooth usually works within a range of 10 meters or less. Make sure the devices you want to pair are within close range of each other. The closer the better.

3. Read the manual that comes with your headphones.

You will find here all the details you need to know to pair your headphones successfully with your device.

Alternatively, you can do a quick Google or YouTube search to find out how others who have the same headphones have paired theirs.

4. Remove previous Bluetooth connections.

Sometimes, your device will prefer other devices that have been connected before, especially if you use that connection frequently. If this is the case, turn that other device off or unpair it from your device.

5. Move away from a Wi-Fi router.

Bluetooth and Wi-Fi both use invisible waves to connect devices. These waves are in the same frequency and can mix with one another, causing interference.

If you’re having a hard time pairing your devices, the problem could be interference. The solution to this is easy. Simply move away from your router and try the pairing process again.


If you’ve made it this far, you’re well on your way to enjoying a perfect listening experience of your favorite music, podcast or movie with a strong Bluetooth connection and no finicky or disruptive interruptions!

Hopefully, you’ve gained an understanding of what those lights on the side of your headphones now mean.

Regardless of whether they’re red, blue, orange, or red, you should be able to know exactly what your headphones are trying to communicate and how to solve this.

Got other problems with your Bluetooth headphones? Worry not! We’ve created different guides tackling the most common issues you may experience with Bluetooth headphones. Check them out here:

Did you manage to fix your headphones? Have we missed other problems commonly experienced with Bluetooth headphones? Let us know in the comments below and we’ll try our best to answer with a solution.

Great headphones blend physics, anatomy – but what you like to listen to is also important for choosing the right pair

Sound is simply a series of low pressure and high pressure areas where air molecules, represented by the small dots, compress or spread apart. Pluke/WikimediaCommons

Between music, podcasts, gaming and the unlimited supply of online content, most people spend hours a week wearing headphones. Perhaps you are considering a new pair for the holidays, but with so many options on the market, it can be hard to know what to choose.

I am a professional musician and a professor of music technology who studies acoustics. My work investigates the intersection between the scientific, artistic and subjective human elements of sound. Choosing the right headphones involves considering all three of those aspects, so what makes for a truly good pair?

What is sound really?

In physics, sound is made of air vibrations consisting of a series of high and low pressure zones. These are the cycles of a sound wave.

Counting the number of cycles that occur per second determines the frequency, or pitch, of the sound. Higher frequencies mean higher pitches. Scientists describe frequencies in hertz, so a 500 Hz sound goes through 500 complete cycles of low pressure and high pressure per second.

The loudness, or amplitude, of a sound is determined by the maximum pressure of a wave. The higher the pressure, the louder the sound.

To create sound, headphones turn an electrical audio signal into these cycles of high and low pressure that our ears interpret as sound.

The human ear

Human ears are incredible sensors. The average person can hear a huge range of pitches and different levels of loudness. So how does the ear work?

When sound enters your ear, your eardrum translates the air vibrations into mechanical vibrations of the tiny middle ear bones. These mechanical vibrations become fluid vibrations in your inner ear. Sensitive nerves then turn those vibrations into electrical signals that your brain interprets as sound.

Although people can hear a range of pitches roughly from 20 Hz to 20,000 Hz, human hearing does not respond equally well at all frequencies.

For example, if a low frequency rumble and a higher pitched bird have the same loudness, you would actually perceive the rumble to be quieter than the bird. Generally speaking, the human ear is more sensitive to middle frequencies than low or high pitches. Researchers think this may be due to evolutionary factors.

Most people don’t know that hearing sensitivity varies and, frankly, would never need to consider this phenomenon—it is simply how people hear. But headphone engineers definitely need to consider how human perception differs from pure physics.

How do headphones work?

Headphones—both bigger varieties that sit over your ears as well as small earbuds—are just small speakers. Simply put, speakers do the opposite of your ear: They convert the electrical signals from your phone, record player or computer into vibrations in air.

Speakers are fundamentally made of four components, a magnet (1), a coiled wire (2), a spring or suspension (3) and a diaphragm (4). Svjo/WkimediaCommons, CC BY-SA

Most speakers are made of four components: a magnet to move back and forth, a wire coil around that magnet, a diaphragm that pushes air, and a suspension that holds the diaphragm.

Electromagnetism states that when a wire is wrapped around a magnet and the current within the wire changes, the magnetic field around the wire changes proportionally. When the electrical signal of a song or podcast pulses through the wires in a set of headphones, it changes the current and moves the magnet. The magnet then moves the diaphragm in and out—kind of like a plunger—pushing and compressing air, creating pulses of high pressure and low pressure. This is the music that you hear.

Ideally, a speaker would convert the electrical signals of the input perfectly into sound representations. However, the real physical world has limitations. Things like the size and material of the magnet and diaphragm all prevent a speaker from perfectly matching its output to its input. This leads to distortion and some frequencies being louder or softer than the original.

While no headphone can perfectly recreate the signal, there are infinite different ways to choose to distort that signal. The reason two equally expensive headphones can sound or feel different is that they distort things in different ways. When engineers build new headphones, they have to not only consider how human hearing distorts sound, but also the physical limitations of any speaker.

Listener preference

If all the complications of ears and speakers weren’t enough, listeners themselves play a huge role in deciding what makes for a “good” pair of headphones. Aspects like age, experience, culture and music genre preference all affect what kind of frequency distortion someone will prefer. Headphones are as much a question of personal taste as anything else.

For example, some people prefer bass-heavy headphones for hip-hop music, while classical music listeners may want less frequency distortion. But music or recreational listening aren’t the only things to consider. Headphones for the hearing impaired may highlight frequencies from approximately 1,000 Hz to 5,000 Hz, as this helps to make speech more understandable.

You could certainly play a hip-hop song through headphones designed for the hearing impaired, but most people would agree that the results aren’t going to sound very good. Making sure the headphones you choose match how you are going to use them goes a long way in determining what will sound good.

Ultimately, the science of headphone design, the artistry of the content creators and the human experience all intersect to form the perception of “good” headphones. Despite all these moving pieces, there is one foolproof way to know when headphones are good: choose a good song and put a pair on! Because when all the attributes align, a good pair of headphones can give you the opportunity to be transformed by sound.

Anyone can get super-hearing

Provided by
The Conversation

This article is republished from The Conversation under a Creative Commons license. Read the original article.

Great headphones blend physics, anatomy – but what you like to listen to is also important for choosing the right pair (2021, November 26)
retrieved 4 December 2021
from https://phys. org/news/2021-11-great-headphones-blend-physics-anatomy.html

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Major retailers offer big discounts for Cyber Monday

TAMPA, Fla. — For Cyber Monday, major retailers are offering deep discounts on a variety of items.

“Sometimes we’ll see certain items slightly better priced on Cyber Monday,” said Kristin McGrath, Editor for The Real Deal blog for RetailMeNot.

If you missed out on something you wanted to get on Black Friday, don’t worry.

“What we’ve seen in past years is that retailers do a lot of Black Friday repeats on Cyber Monday. They’ll just bring a Black Friday Price around again,” said McGrath.

If you’re not sure what to focus on, the products that will see some of the biggest deals include:

  • Electronics like TVs, laptops, headphones, earbuds and home security cameras
  • Kitchen Gadgets
  • Home products like vacuums

Here are just a few of the best marked down items on Cyber Monday:


  • Samsung Class 4K Smart TV
  • Bose Wireless Noise Cancelling Headphones
  • Ninja Blender Kitchen System
  • Samsung Chromebook

Best Buy

  • Save $200 on the Dyson Ball Animal Vacuum
  • Digital Air Fryer
  • Ninja Dualbrew Coffee System
  • Save $500 on select Samsung laptops


  • Up to 40% off of toys
  • 30% off clothes
  • Up to 50% off furniture
  • Up to 60% off video games


  • 50% off Fire Tablets
  • 50% off Fire TV Stick
  • HP traditional laptops
  • Samsung tablets and monitors
  • Robotic Vacuums

You can expect to see different deals all day long at these retailers, but supply chain issues will mean things could sell out faster than usual.

“Retailers will do kind of pulsed deal launches where they’ll launch different things at different times just to keep that hype going,” said McGrath.

Experts say shopping earlier in the day is best if you’re looking for something specific.

“It’s really hard to predict for consumers what exactly is going to happen. So if it’s an item you must have, it’s an item you plan to get as a gift, as soon as you see it on sale, get up as early possible, wait for that price to drop, and get it,” said McGrath.

“If there’s something you’re flexible on, it’s on your list you don’t have to have it in time for the holidays, maybe it’s a self-gift for you, definitely wait and see how things roll out and see if you can get a better price,” she added.

90,000 Why can’t my phone see my wireless bluetooth headphones?

One of the most common problems that you can encounter when connecting headphones to a phone is when the phone does not see wireless headphones that are connected via Bluetooth. This problem is relevant for both Android phones and iPhones. Well, with the advent of separate Bluetooth TWS headphones, these problems have become even greater. First, a lot more people started using wireless headphones, using them as a headset.Secondly, TWS headphones are technically more complicated, and there are often problems with their connection.

In this article I will tell you what to do when the phone does not find Bluetooth headphones or a headset. He simply does not see them in the list of available Bluetooth devices. And which, perhaps, have seen before and they were connected.

The article will focus on both TWS headphones (when two headphones are separate) and conventional wireless headphones. The solutions are suitable for different Android smartphones: Samsung, Xiaomi, Honor, OPPO, Huawei, etc.These solutions are also suitable for iPhone. As for the headphones themselves, the manufacturer and model does not matter: JBL, Sony, Honor, Xiaomi, Motorola, QCY, Chinese i7s, i9s, i10, etc.

Android phone or iPhone can’t see Bluetooth headphones: what to do?

Overall, the Bluetooth function on Android phones and iPhones works well and stably. If the phone does not find the headphones, then the problem is most likely on the side of the headphones. And in my experience, the problem is almost always that the headphones are not in pairing mode.That is, they are either connected to another device and therefore not available to other devices, or they are simply not in connection mode. Two important points:

  1. If the headphones are switched on (a beep sounds, the indicator is on), this does not mean that they are in pairing mode. They may not be available for the phone and he simply will not see them.
  2. If the wireless headphones are connected to another device, the phone cannot find them. After connecting to a device, the connection mode is disabled.The phone will not be able to detect the headphones.

Problems connecting AirPods to iPhone? Then see this article: we connect AirPods to the iPhone: does not see, does not connect, one earphone does not work.

If you have problems connecting one earbud, see this article: one wireless earbud does not work, stopped playing.

Trying to connect:

Step 1: Turn on the headphones. On some models, you need to press the power button.If we are talking about separate Bluetooth headphones, then you need to get them out of the case. It is possible to press and hold the button on each earphone for 5 seconds to turn it on. Almost always, you can find out about the status of the headphones by the indicator (s).

Step 2: Go to the Bluetooth settings on your smartphone and turn it on (if it is on, turn it off and on again). On Android and iPhone, these settings look pretty much the same.

The search for available devices will start immediately.If our headphones appear in the list, select them and connect. If not, see the solutions below.

You can see the instruction on the example of connecting Redmi AirDots and Xiaomi Earbuds headphones. Or detailed instructions on how to connect wireless headphones to your phone.

1. Disconnect headphones from other devices

If you are sure that your headphones are not connected to other devices, you can skip this step. But I recommend checking it out. Wireless headphones can automatically connect to devices (with which they are paired) after they are turned on or removed from the case.

You can simply turn off Bluetooth on those devices (phones, tablets, laptops, TV set-top boxes) to which your headphones can be connected (to which you used to connect them). Or remove (forget) the headphones in the settings. By the way, I recommend checking if there are any headphones in the list of connected ones on the phone that does not see them. If so, delete them. It looks something like this:

Once the headphones are disconnected from all possible devices, they can automatically go into pairing mode.This means that they should already be displayed in the Bluetooth settings on your phone and you can connect them.

2. Activate the connection mode on wireless headphones

We need to put the headphones into connection mode so that they become available to other devices and our phone can detect them.

If these are ordinary headphones, not separate (TWS), then they usually have a separate button. On my JBLs it has a Bluetooth icon. You need to click on it and hold it for a few seconds.The blue indicator will start blinking actively.

Depending on the model, the connection mode can be activated in different ways. I would recommend looking at the instructions for your model.

The phone does not see TWS headphones. On TWS (when two separate earbuds, charging case), the connection mode should be activated automatically after removing the earbuds from the case, or after turning them on. In this case, the indicator on the headphones (or on one earphone) should flash (usually white, blue, or red-blue).

The headphones may be turned off or discharged (there may be charging problems, the solution to which I wrote here). If they do not turn on automatically after you took them out of the case, then try turning them on manually. To do this, you need to hold down the button (often a touch button) for 3-5 seconds. On each earpiece.

3. Do a factory reset

You can try to restore the factory settings on the headphones. Perhaps the smartphone will then be able to detect the headphones.The instructions on how to do this, it is advisable to look specifically for your model (paper instructions, which are usually included in the kit). But I understand that such an opportunity is not always available. And the instruction may be missing.

On ordinary Bluetooth headphones (not separate), most often you need to hold down the power button, or the connection mode activation button and hold it for 20-40 seconds. On the JBL, for example, you have to hold down the volume up and down buttons.

Resetting TWS headphones is a separate topic.And on this topic, I have already prepared a detailed article: how to reset and sync wireless headphones with each other?

As a rule, you need to hold down the buttons on both headphones for 15-40 seconds. These can be either mechanical buttons or touch buttons. On some headphones, the reset occurs only when we hold down the buttons without removing the headphones from the case.

All information on this topic is in the article at the link above. You can determine the reset by indicators. Typically, the red or orange indicator blinks several times.But do not forget that this happens differently on different headphones.

How to understand why the phone does not see the wireless earpiece?

Since we have two devices in this circuit (phone and headphones), we need to find out what is the reason. And you can do it in the following way:

  1. Try to connect the headphones to another device. To another phone, tablet, laptop, etc. It is desirable for 2-3 different devices. If these devices also cannot detect the headphones, then the problem is with them.And if the solutions from this article did not help, then perhaps this is a hardware failure.
  2. Try to connect another Bluetooth device to your phone. It can be other wireless headphones, a speaker, another phone, etc. And if he sees them, then the reason is definitely in the headphones.

I tried to prepare the most understandable and simple instruction. But since there are a very large number of phones and headphones themselves, it is very difficult to write a specific instruction on this topic.

You can always write about your problem in the comments, ask a question and get an answer to it. Just do not forget to indicate the model of the headphones that your phone does not see and describe everything in detail. This will make it much easier for me to help you. Good luck!

Review of Sennheiser Momentum True Wireless 2 bluetooth headphones

Sennheiser has been developing wireless headphones for many years. So, the first wireless model, MX W1, was released in 2008.And 10 years later, the company pleased users with another revolutionary novelty – Momentum Wireless headphones, which, unlike analogues from other manufacturers, gave the highest quality sound comparable to traditional wired equipment.

And now, for its 75th anniversary, Sennheiser has expanded its line of premium Bluetooth headphones Momentum with the release of Momentum True Wireless 2, the development of which took into account many wishes of users of the first version. In terms of sound characteristics and design, these headphones are similar to their predecessor, however, they received a newer version of Bluetooth (5.1), increased battery life up to 7 hours, active noise suppression function and other innovations.

Complete set

  • Case for charging and transport
  • 25cm USB to USB Type-C cable
  • Three pairs of ear pads of different sizes



The design of the charging case has practically not changed in comparison with the previous version – it is also laconic and covered with a fine soft fabric pleasant to the touch.However, in the case of the Momentum True Wireless 2, you can choose two colors – black headphones in a dark gray box or white in a light gray. At the same time, the first generation Momentum bluetooth headphones were only available in one (dark) version.
The lid of the box is securely fixed in the closed position with magnets, so even when shaking, for example, while traveling, you do not have to worry that the headphones will fall out. The well thought-out shape of the slots also contributes to the firm fixation of the headphones. And thanks to a spring-loaded closer, the case opens and closes smoothly.The back of the box is equipped with a USB Type-C socket, a battery charge level indicator and a power button.


The shape of the headphones has not undergone any significant changes, but the dimensions have been slightly reduced. Like its predecessor, the new model has holes on the side, behind which are microphones responsible for the functions of “transparent” hearing, active noise cancellation, and speech transmission. The top of the headphone housing contains components for magnetic mounts, charging contacts, and indicator lights for wireless connectivity and battery status.

Momentum True Wireless 2 in progress

To connect headphones, the Smart Control application is traditionally required, which works with gadgets on Android and iOS platforms. The first time you connect, pairing mode starts. If an error occurs when connecting via Smart Control, the headphones can be connected in the usual way – through the menu of the device (smartphone, tablet, PC, etc.), and then enter the application and find the headset there.

In addition to pairing, the proprietary application also has other useful features – changing the equalizer settings, notification sounds, restoring factory settings, managing automatic calls, activating the “transparent” hearing function, which allows, for example, to hear the interlocutor or announcement of stops in public transport without switching off headset and without pausing playback of songs, movies, etc.d.
The novelty can be used from two devices – for example, to watch listening to music or watch a movie from a laptop, and adjust the acoustic parameters from a smartphone. In this case, sound playback is possible only from the last connected device.

The high stability of the Bluetooth connection should be noted. So, the new headphones maintain normal communication with gadgets, even in places with a high level of interference. There are also no delays during video playback. However, audio transmission may slow down during games – in this case, you should switch from aptX codec to SBC.

and the previous version, the new one fits well in the ears, does not slip out, but is more miniature, which means it is more comfortable – especially when worn for a long time. The novelty can work seven hours without recharging. When the headset is completely discharged, it will take 1.5 hours to charge to 100%. If you don’t have time to wait, you can put it in your case for ten minutes. The charge received during this time is enough for an hour and a half of work.

Active noise canceling makes listening to music more enjoyable.So, this system well suppresses conversations at normal volume, the roar of a car engine outside the window, the hum from the street, highway. Unlike other active noise canceling headphones, the Momentum True Wireless 2 does not have a crushing sensation.

90,000 no speakers or headphones connected –

High sound quality is really an important criterion for a better user experience when working on a computer or laptop. Almost all computers and laptops have a sound card built into the motherboard and they are called onboard sound cards .In addition, some companies (HP, Lenovo, Dell, and others) make computers with speakers built into the computer case. Also, speakers are built into the laptop case. In addition to internal speakers, end users buy external speakers and headphones. There are different types of speakers or headphones, from standard cheap devices to gaming devices that are really expensive.

When you connect speakers or headphones to the 3.5 ”audio jack on your computer or laptop, you will see that the speakers or headphones are active in the taskbar.If your speakers or headphones are not connected, you will be red X on your speakers in the taskbar.

Sometimes when you connect speakers or headphones to the 3.5 ”audio jack, you expect the red X to disappear. Unfortunately red X is still on the speakers because there are some problems with your audio device.

There are several reasons for this issue, including defective speakers or headphones, sound card disabled in BIOS or Windows, driver not out of date, and others.We’ll show you how to fix your audio device problem using the eight methods we’ve prepared for you.

Method 1: Test Speakers or Headphones on Another Computer

To ensure that your speakers or headphones are not defective, we recommend that you test if they work on another computer or laptop. If you don’t have another computer or laptop, you can test the speakers or headphones on your smartphone. If they do not work well, replace the speakers and headphones.If they work without issue, continue troubleshooting sound from Method 2 .

Method 2: disable and enable your sound card

One of the first steps when you have a problem with a hardware device on your computer or laptop is to turn off your device and then turn it back on again. You can try this method on Windows Vista, Windows 7, Windows 8, Windows 8.1 and Windows 10.

  1. Keep Windows logo and click p
  2. Type devmgmt.msc and click Login . device Manager will open.
  3. expand Sound, video and game controllers
  4. Correctly click on sound card and press deny
  5. Press yes turn off sound card
  6. Wait a few seconds and then turn on your sound card
  7. Run again your Windows
  8. Test task you speakers and headphones

Method 3: update your sound card driver

If the first two methods did not solve your problem, the next step will include updating your sound drivers …We will show you how to update your audio driver in Windows Vista, Windows 7, Windows 8, Windows 8.1 and Windows 10. The procedure is really simple. If you are using Windows 7, you do not need to download the sound driver for Windows 10. Please do not download the sound driver for another operating system. You also need to download a sound driver based on the architecture of your operating system, including 32-bit and 64-bit. We will show you how to uninstall Realtek driver and how to download the latest audio driver for Dell Vostro 15 5568 laptop .

  1. Keep Windows logo and click p
  2. Type devmgmt.msc and click Login . device Manager will open.
  3. expand Sound, video and game controllers
  4. Correct click on sound card and click Uninstall device
  5. Select Uninstall driver software for this device and click Uninstall
  6. Start again your Windows
  7. Download the latest driver for your sound card, which you can access from this link
  8. Install audio driver
  9. Start again your Windows
  10. Test task your speakers and headphones

Method 4: Disable Front Panel Slot Detection

Realtek is a sound card manufacturer and one of the leaders in the information technology market.If you are using a Realtek sound card, you will need to make some changes to the Realtek software. Changes will include disabling front panel connector detection in the Realtek HD Audio Manager .

  1. Left Click on Start Menu and Enter Realtek HD Audio Manager
  2. Open Realtek HD Audio Manager and Select Computer Speakers Tab
  3. Click on folder under device advanced settings .The connector settings will open.
  4. Select Deny Front Panel Jack Detect
  5. Press OK
  6. Test Job Your Speakers and Headphones

Method 5: Mute HDMI Sound

If To Transmit If you are using an HDMI cable, you need to mute the HDMI audio and then try to use your speakers or headphones. We will show you how to disable the HDMI output

  1. Correct Click on the speaker in the lower right corner of the taskbar
  2. Select Play Devices
  3. Open Play Tab
  4. Right Click on S24D590 which uses HDMI and select deny
  5. Press Apply and then Okay
  6. Test Job Your Speakers or Headphones

Method 6: System Restore

Sometimes after updating Windows the sound card stops work.The solution for this is to revert Windows to a previous state prior to this update. One of the steps that end users ignore is creating system restore checkpoints. If you are not one of the users who ignored this, we recommend that you restore Windows to its previous state using System Restore. If you know when the sound worked without problems, return Windows to that date. If System Restore is not enabled on your computer, you need to read Method 7.We recommend that you enable System Restore by reading this LINK.

  1. Hold Windows logo and press Enter
  2. Type rstrui.exe and press Enter
  3. Press Select another restore point and press next
  4. Select the correct checkpoint and press Next
  5. Press End
  6. Start Windows again and wait until Windows System Restore is finished
  7. Test Job your speakers and headphones

Method 7: Enable sound card in BIOS or UEFI

If you are using the built-in sound card, you need to check the settings in BIOS or UEFI.Sometimes the onboard sound card may be disabled in your BIOS and you need to enable it. You will need to access your BIOS or UEFI. How will you access BIOS or UEFI? It depends on the supplier. For Dell, you need to press F2 during boot, for HP, you need to press F10. We recommend that you check the technical documentation of the device you are using. We will show you how to enable sound card on ASUS motherboard.

  1. Start again or turn on the computer or laptop
  2. During boot press Del or F2 to access BIOS or UEFI
  3. Press F7 to access Advanced mode
  4. Press OK confirm access to Advanced Mode
  5. select Advanced, and then press On-board device configuration
  6. Go to on-board audio devices.As you can see, there are two audio units HD Audio Controller and Realtek LAN Controller. You must enable them.
  7. Press Exit and then press Save changes Reset
  8. Test task your speakers or headphones

Method 8: Change your sound card

The last solution you can try is to disable the current built-in sound card and install an external sound card.This can be done by going into BIOS or UEFI, which is described in method 7. The next step is to buy a compatible sound card with your device and operating system. There is a USB, PCI and PCIx sound card. There are many sound card manufacturers, including Asus, C-Media, Sound Blaster and others.

Huawei Freebuds 4i –

headphones review

TWS headsets are aggressively driving their addicted counterparts out of the consumer market.Their use is no longer a fashionable trend, but a real necessity for those who practice an active lifestyle. Today we will get acquainted with Freebuds 4i – completely wireless headphones from Huawei.

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Complete set Huawei Freebuds 4i

The headphones are delivered in a nice box made of solid cardboard. In addition to the headset itself, the buyer will find in the package: a USB Type-C charging cable, an envelope with documentation and two sets of replaceable ear pads.The latter are of different sizes and this is indicated not only by the dimensions, but also by the marking on transparent packaging bags. A universal, medium-sized kit, already installed in the headphones.


The FreeBuds 4i is available in several color options: black, red and white. If you have no specific preferences, then I advise you to stop at the white version. The case and the headset itself in this design will give out less fingerprints.

Compact case with rounded edges and glossy surface.It conveys a pleasant tactile sensation in the palm of your hand, and its dimensions allow it to easily fit into a small pocket. In the center of the front surface of the charging case, the manufacturer’s logo is applied, and below the LED indicator of the charging level. Bad news for those who expect to “play” with the lid, the ergonomic features of the case do not make it easy to do it with one hand. The hinge mount is plastic, but it looks and feels solid, although there is a slight backlash. At the bottom is a USB Type-C port for charging.The bottom surface of the case has a flat base, which allows it to sit comfortably on a flat surface. On the right is a button that enables Bluetooth pairing.

The headphones are held firmly in the case by magnets and can be removed with little effort.

The headset is made in the already familiar form factor. It is of in-channel type with silicone nozzles, which are securely attached to the projection of the sound guide, covered with a protective mesh.

On the inner surface of the “legs” of the headphones, there are contacts for charging, channel marking and slots for noise canceling microphones. On the outside are the same small holes for voice communication and noise analysis microphones. In general, the case and the headset itself are made of good materials and there is nothing to scold the build quality for.

Connection and control

The headphones support the current Bluetooth 5.2 version. Connection, after pressing the pairing button, occurs without any problems.Fast connection with animation works only when paired with the manufacturer’s smartphone. In other cases, this happens in the usual way.

The headset is controlled by sensors located on the outside of the case.

The default control settings are as follows: double tap – control playback and call, long press – switch between noise reduction mode, transparency and disable both.Unfortunately, the Freebuds 4i does not have the ability to control the volume level with swipes, this privilege was left for the older model.

You can control the gadget and customize it for yourself in the proprietary software Huawei AI Life. Here you need to take into account a small nuance, for some reason Huawei did not bother to update the old version of the software on Google Play, which does not support Freebuds 4i.

To solve this problem, you will have to use the App Gallery branded applications store, or download the apk file to install.It would seem a trifle, but unpleasant, it had to be taken care of.

Here you can switch modes, change the control scheme, update the device, and also monitor the state of charge of both the headphones themselves and the charging case. There are not so many possibilities, but there are the most necessary ones, for an inexpensive device it is quite enough. Although the ability to customize the character of the sound with an equalizer would not hurt.

Operation and Sound

The headphones sit comfortably and are well fixed, you won’t have to worry about falling out of the ear canal during physical activity.Sometimes the fit needs to be adjusted, but this applies to all headsets of this type. In order to avoid false alarms in sensitive areas, a short single touch is not tied to any action on the touch panel.

Such solutions are often chosen not only based on the sound quality, but also the ability to have comfortable conversations in Hands Free mode. And here Freebuds 4i did not disappoint, the quality of the microphones for voice communication turned out to be unexpectedly good. The interlocutor perfectly understands speech, even when communicating in a noisy environment.I had experience of regular conversations with an elderly person and there were no problems in communication. At this price point, this feature is rare.

Active noise reduction is present here not only “on paper”. The function works great, delicately cutting off monotonous sound. You don’t expect this from a headphone in the mid-budget segment. In public transport, it did not work to check the ANC’s work, due to the restrictions associated with the pandemic, but in windy weather and near a busy road, the headset coped perfectly.For those who are interested in hearing the sound background, for example, when communicating with others, you can switch to “transparent mode”.

A 10 mm electrodynamic driver is responsible for the sound quality. The sound is well balanced. The low-frequency range sounds dense, without drowning out the lead instruments and the vocalist’s voice. Basses form the tonal basis and rhythm of the music well. There is a significant lack of detail in the middle, but for a TWS-headset in a similar price segment, the sound is quite decent.Headphones of this type cannot be regarded as a device for a music lover, but you will be able to feel the rhythm of the compositions and perceive the vocalist well.

The volume reserve is sufficient for noisy environments. There is no delay in sound, it is perfectly synchronized with the image not only when watching a video, but also in dynamic games.

An important detail – the headphones work autonomously and have no dependence. If you want to use only the right one, then his partner can calmly rest in the case and vice versa.The headset cannot work simultaneously with several devices.

On iOS devices, the sound quality changes slightly for the worse and the volume decreases, but these changes are not critical. Apparently different codec settings affect.


The battery capacity of each earbud is 55 mAh, and the charging case is 215 mAh. The manufacturer promises up to 10 hours of music playback on a single charge with the noise canceling function disabled and 50% volume.In practice, the headphones work in mixed mode for 7-8 hours. With the help of the case, they will last about 20 hours. The numbers can change, both in one and the other direction, and it depends on many factors: activation of the ANC mode, volume level, audio coding format, environmental conditions, etc. The headphones and case are fully charged in less than an hour. The headset is equipped with fast charging technology. After 10 minutes of charging, it will play music for up to 4 hours, but provided that the case has at least 80% charge.

Build quality, variety of colors, ANC sound and performance, good performance of microphones for voice communication, comfortable fit, price

there is no way to control the volume level with swipes, at the time of the review there was no current software in Google Play

If you are looking for a quality TWS headset and your budget is limited, then the Huawei Freebuds 4i has everything in its arsenal to draw attention to itself.Balanced sound, good battery life, excellent noise canceling performance and reliable voice communication will ensure the headphones are popular and sell well.


Real Blue NC Headphones with Bluetooth and ANC User Manual

User Manual

Real Blue NC Headphones with Bluetooth and ANC

General Notes and Information

Information in this document is subject to change without notice and in no way implies liability on the part of Lautsprecher Teufel GmbH.

No part of this manual may be reproduced in any form or transmitted in any form electronically, mechanically, photocopyed or recorded without written permission from Lautsprecher Teufel GmbH.

© Lautsprecher Teufel GmbH
Version 1.2, October 2020

Please contact our customer service department with any questions, suggestions or complaints:

Lautsprecher Teufel GmbH
Budapester Straße 44
10787 Berlin (Germany)
Phone: +44 3308080489
Online support: http: // teufelaudio.com / service
Contact form: http://teufelaudio.com/contact

Original packaging
If you would like to exercise your eight week right of return, we ask you to be absolutely sure that you keep the packaging. We only accept returns with ORIGINAL PACKAGING.
No empty boxes available!

Return Policy
In the event of a claim, we will need the following information to process your request:

1.Invoice number
This can be found on the sales receipt (included with the product) or on the order confirmation received as a PDF document, for example 4322543

2. Serial or batch number.
Located on the rear of the device, for example the serial number: UL 04007480121A.

Thank you for your support!

Environmental protection
Old devices must not be disposed of with household waste!

If the device no longer works, every consumer is obliged by law to dispose of used devices separately from household waste, for example, at a collection point operated by a municipal authority / district.This ensures that your old devices are disposed of in a professional manner and prevents any negative consequences for the environment.

For this reason, electrical equipment is marked with the displayed symbol.

Batteries and rechargeable batteries are not intended for household use.

The law requires every consumer to bring all batteries and rechargeable batteries, whether they contain hazardous substances *) or not, to a municipal or district collection point or retailer so that they can be disposed of. in an environmentally friendly way.Only hand over discharged batteries and rechargeable batteries! *) with the inscription: Cd = cadmium, Hg = mercury, Pb = lead

Scope of delivery

  • 1 × REAL BLUE NC
  • headphones

  • 1 × USB cable 1 m
  • 1 × aircraft adapter
  • 1 x audio cable with two 3.5 mm plugs and distance cable, length 1.3 m
  • 1 × storage box

For your safety

Read the safety instructions and user manual carefully before using the headphones.This is the only way to ensure safe and reliable use of all functions. Keep this user manual in a safe place and be sure to pass it on to any subsequent owner.

Correct use
The REAL BLUE NC headphones are used to reproduce the audio signals transmitted by the audio system via the supplied cable or via Bluetooth®.

Use the headphones only as directed in this user manual. Any other use will be considered inconsistent with the instructions and may cause damage to property or even people.

The manufacturer is not responsible for damage caused by improper use.
The headphones are suitable for use at home by DJs and professionals.

Safety Notes

Risk of suffocation for children!
Make sure that children do not play with the packaging foil or remove small parts from the headphones or put them in their mouths. There is a danger of suffocation.

Prolonged exposure to high volume levels can cause hearing loss.

Prolonged exposure to high volume levels can cause hearing loss.

Avoid listening at high volume for prolonged periods to avoid personal injury. Connect headphones to the headphone outputs only! Do not connect them to the amp’s speaker output for life.
Set the volume control of your audio source to a low level before putting on the headphones.

Traffic hazard!
Your headphones will significantly damp the outside noise.Therefore, for road safety reasons, do not wear headphones while driving or cycling.

If you are a pedestrian, use headphones to pay attention to your surroundings, especially when crossing the street.

Risk of injury!
Do not use headphones in an environment where there is a risk of explosion.

Health hazard!
Leaking battery acid can cause chemical burns. Do not allow battery acid to come in contact with skin, eyes or mucous membranes.In case of contact with battery acid, immediately rinse the affected area with plenty of clean water and consult a doctor if necessary.

Attention! Risk of explosion / fire!
Lithium batteries can explode if mishandled. Replace only with the same or equivalent. Do not heat or incinerate the battery. Charge the battery only in an ambient temperature of 10–45 ° C.Do not use the headphones in an environment where there is a risk of explosion. Do not expose batteries and accumulators to direct sunlight.

Radio wave interference!
Radio waves can interfere with other sensitive devices that are not shielded. Use headphones only in areas where Bluetooth® is approved.

Risk of damage!
Make sure the headphones do not get wet, protect them from moisture, heat (for example, in a car in summer) and mechanical impact (for example, strong shocks, pressure and drops).

When pulling out the connecting cord, always grasp the plug. Do not pull on the cable.

This symbol indicates that the device is powered by DC voltage.


Wipe the ear pads and headband with a soft, dry cloth. Never use aggressive cleaning agents as they can damage the sensitive surface.

Put on the headphones so that both ears are tightly closed and the headphones are in the middle of your ear.

If necessary, adjust the length of the headband to fit your head.

Charging the storage battery

Briefly press the power button 1 to display the battery level.

When the LED glows green for 2 seconds, the battery level is 60-100%.

When the LED glows orange for 2 seconds, the battery has a charge level of 20-60%.

When the LED glows red for 2 seconds, the battery charge level is 0-20%.

The rechargeable battery of your Teufel REAL BLUE NC has a capacity of approx. 20 hours with headphones in Bluetooth® and ANC mode at the same time.

  1. Open the rubber plug for the USB port.
  2. Use the supplied USB cable to connect the headphones to a PC USB port or USB adapter.
    The LED will be solid red while charging.The LED will turn green as soon as the battery is fully charged. It may take up to 3 hours to fully charge, depending on the USB connection you are using.
  3. Remove the USB charging cable from the headphone USB port and close the rubber plug again. The LED will turn off.

Please note:
For external iOS players and some newer Android smartphones and tablets, the headphone battery level will also be displayed in addition to the Bluetooth® symbol.
If the LED indicator flashes red, the headphone battery is almost empty and needs to be charged; the headphones will also emit an acoustic signal.

Establishing a Bluetooth® connection

Bluetooth® mode only works when no cable is connected. As soon as you connect the headphones to a USB charger to charge them, or operate the headphones with the connecting cord, Bluetooth® mode is automatically deactivated.

  1. Press and hold the power button 1 for 2 seconds to turn on the headphones.
  2. Press and hold the Bluetooth® button 2 for 2 seconds to start the Bluetooth® search. The
    LED will flash blue.
  3. Activate the Bluetooth® function on the external player and select “REAL BLUE NC”.
    The LED will flash blue for 5 seconds if the connection has been successfully established.

Please note:
Briefly pressing the power button 1 and the Bluetooth® button 2 simultaneously activates or deactivates the keypad lock; the headphones will also emit an acoustic signal.

The Bluetooth® connection will be interrupted as soon as the headphones are too far from the external player. To re-establish the connection, you must move the headphones within the range of an external player within 2 minutes.

The last volume setting will be saved when the headphones are switched off. Music playback will be interrupted in case of an incoming call and will continue after the call ends.

Change / restore Bluetooth® connection

The headphones will automatically connect to the external player you use most often.Press and hold the Bluetooth® button 2 for 5 seconds if you want to connect the headphones to another external player, or if you have a connection problem and want to manually reset the headphones.

Delete Bluetooth® connection

Remove the headphones in the Bluetooth® settings of the external player.

Audio cable connection

Connect the 3.5 mm headphone jack to the headphone jack of your audio system or smartphone using the supplied audio cable.

Please note:
The Bluetooth® function will automatically deactivate after connecting the headphones with the audio cable.

Remote cable
You can use the Cable Remote button on the audio cable to perform the following functions:

Enable / Disable ANC

You can turn ANC on and off with the ANC switch 3.

Please Note:
ANC is Active Noise Cancellation that digitally reduces ambient noise so you can better listen to music and hear phone calls.

Note that ANC works especially well for static, sustained, low frequency sounds such as aircraft hum, noise, buzzing, etc. Short burst sounds such as speech, rumbling and footsteps are less attenuated. … There is currently no method to completely eliminate background noise.


Remove the protective film before use.

Please Note:
Remember that you will not be able to use it properly if you have very dry hands or if you are wearing gloves.Do not move your fingers over the surface too quickly. After some practice, you will find out which movements and speeds are best.

Slide your finger downward across the touch surface to decrease the volume one step. Keep your finger on the touch surface to decrease the volume a few steps.

On the touch surface, slide your finger from left to right to play the next music track, or to keep the active call and answer the waiting call.

On the touch surface, slide your finger from right to left to play the previous music track, or to keep the active call and answer the waiting call.

Press once on the middle of the touch surface to:

  • play music,
  • pause music,
  • take the call,
  • Hang up an outgoing call or end a call.

Double tap the middle of the touch surface to mute the microphone.
Press and hold the middle of the touch surface to enable voice control or reject an incoming call.

Problem Solving

The following tip should help you solve problems.

If that doesn’t work, you will find useful information in the detailed answers to frequently asked questions on our website. web site. If not, contact our hotline (see page 1).

Technical data

You can find additional technical data on our website.Subject to technical changes!

Lautsprecher Teufel GmbH hereby declares that this product complies with the requirements of directives 2014/30 / EU, 2014/35 / EU and 2014/53 / EU to the extent that they are installed and used in accordance with the manufacturer’s instructions. The full text of the EU declaration of conformity is available at the following address:
Internet address: www.teufelaudio.com/declaration-of-conformity.html

This product uses the following radio frequency bands and radio transmit powers:

Radio network: Bluetooth®
Frequency range: 2402-2480 MHz
Transmission power: 2.5 mW / 4 dBm

Please contact our customer service department with any questions, suggestions or complaints:

Lautsprecher Teufel GmbH
Budapester Straße 44
10787 Berlin (Germany)

Phone: + 44 3308080489

We are not responsible for the correctness of this information. Subject to technical changes, typographical errors and other errors.

Learn more about this manual and download PDF:

Real Blue NC Headphones with Bluetooth and ANC User Manual – Optimized PDF
Real Blue NC Headphones with Bluetooth and ANC User Manual – Original PDF

Questions about your management? Post in the comments!

Related Guides / Resources

Errors and misprints | Lectorium

February 8, 2017 – 15:39

# 52



March 27, 2017 – 17:53

# 54



Video 8.1
Mr. Herschel, still William, not William)

April 13, 2017 – 12:23

# 55



Test 4 question 2.[Deleted by a moderator for violating forum rules] Please correct it. Thanks.

June 12, 2017 – 01:11

# 60




At the video “Lectures 2.4 | Out-of-atmosphere astronomy “instead of sound – noise cutting ears. At the very beginning – dangerous for hearing, high-frequency. I barely managed to take off the headphones, my ears still hurt.
Urgently fix it before someone else is hurt! as long as it is available on the video service, everything is in order.

June 12, 2017 – 01:16

# 61



Addendum: I checked it from the browser on Android – everything is in order, from the browser on Ubuntu Linux – it’s noisy.

June 22, 2017 – 17:47

# 63



I have more clarification.

Lecture 2.6. time ~ 5:15. On the slide on the right-hand side it says “series” and the following is the listing. And, logically, Balmer and Lyman should probably go in a different order.

July 12, 2017 – 18:22

# 64



Hello.The timetable for the Astronomy course does not indicate the opening date for chapter 9.

July 14, 2017 – 15:12

# 66



Hello.Thanks. Now I see.

July 14, 2017 – 23:49

# 67



Lecture 9.3. At the beginning of the 14th minute, it is said about the transition of hydrogen to a neutral state and the formation of a neutral medium. The lecturer says that this happened 380 years after the “big bang”, but the slide shows the time t = 400,000 years. Where is the mistake?

July 19, 2017 – 20:57

# 69



Hello! In the topic “Measuring Time”, on the slide, in the formula for determining the height of a falling body, you need to take t squared.

July 19, 2017 – 21:09

# 70



Hello! In the topic “Measuring Time”, on the slide, in the formula for determining the height of a falling body, you need to take t squared.

July 25, 2017 – 13:10

# 72



Hello.I can’t download presentations except for paragraph 5.1.

July 26, 2017 – 14:16

# 75



In the final test of Chapter 3, the marked correct answer to question number 2 is marked as incorrect, and then shown as correct.Correct the mistake. I have already written to technical support.

July 31, 2017 – 13:47

# 77



Uv.Vladimir Georgievich, in lecture 7.3 a reservation for 0.40 “the mass of the Sun is 330 times greater than that of our planet”

August 10, 2017 – 15:37

# 79



Hello.In section 8.3, the first self-test question does not have a check button. This has already been written about in this thread.


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