Wireless headphones are a convenient, practical and compact device for transmitting audio that works wirelessly (hence the name). But why does one headset require wired connection, and the other can work at a distance, and what are its advantages and disadvantages? All answers about how to use wireless headphones in the article below.
What is Bluetoth and how does it work?
It is Bluetooth that allows wireless headphones to work without the use of ever-breaking wires. This is a technology based on data transfer between devices through the exchange of information using radio waves.
"Bluetooth" is a radio frequency standard patented over 20 years ago, named after the king of Denmark who reigned in the 900s. This is a spectrum of frequencies that other radio devices do not use - the range from 2.400 to 2.4835 GHz. In addition, this is a set of rules in the form of a protocol that normalizes the interaction of devices connected to each other.
Bluetooth appeared in response to the technology of data transmission via an infrared port, which was popular at that time; the disadvantage of the transmission method was the high requirements for transmitters - they had to be placed in direct line of sight to the receivers and on a short distance from them. Bluetooth can even work through a wall or any surface that can transmit a radio signal.
Wireless technology operates using special piconets. There is an active and passive device. The first connects to the second and transmits information in the form of bits. In this case, the transfer speed can reach up to 3 Mbit per second. Since Bluetooth uses low-power waves, data transfer does not drain the device’s battery at all and uses a minimum of charge.
Bluetooth operating range. At what distance can wireless headphones operate from the signal source?
The key problem with this technology is the presence of many devices equipped with radio modules. This may cause interference when other equipment is accidentally connected to the transmitter. But the Bluetooth developers did everything possible to prevent such a problem - they reduced the Bluetooth coverage area as much as possible and activated frequency hopping.
As a result, you will not be able to listen to music through wireless earphone, if it is further than 10 meters. And to prevent a third party device from accidentally interfering with your data transmission channel, the transmitter changes its frequency every second. Even if the frequencies coincide, it will be a short-term connection break that you will not have time to notice.
How to pair devices via Bluetooth?
Not all electronics are equipped with this technology, and if the device has Bluetooth, it is not a fact that it is suitable for connecting to headphones. To avoid interference, the developers of this method of data transmission made sure that each device has its own set of protocols with which they can work.
The easiest way to connect devices is when both of them have Bluetooth. Then it is enough to activate this function in both devices and connect through the active gadget to the passive one to transfer data. If Bluetooth is not included in the device, then you can connect a special adapter that will act as a removable radio module.
Wireless headphones sometimes come with an adapter and receiver. In this case, you only need to connect the transmitter to the equipment that transmits sound, and insert the receiver into the headphones. True, this is not true for any equipment, and depending on the configuration of the adapter, you can connect it to a USB connector, or to the audio output of, for example, a music center.
What are the operating profiles of wireless headphones?
How to use wireless Bluetooth headphones and get the best best quality sound? Not all wireless headphones work equally well. This is because they use different codecs and profiles in their work. That is, they are based different technologies, even though they work using the same networks. There are 3 main profiles with which the headphones operate:
- Headset Profile is the most basic profile that was created to transmit sound in two directions: so that you can listen to music and. But the attempt was not entirely successful - the quality transmitted sound very low - at best it is 64 Kb/s.
- Handsfree Profile is a more advanced profile, much like its predecessor. Its sound quality is better, but you still won't be able to listen to music. But for conversations through headphones, Handsfree Profile is very suitable.
- Advanced Audio Distribution Profile is the best profile for connecting headphones with other devices. Although it compresses the sound (and there is no other way to do it, because Bluetooth technology is very limited), the sound quality remains approximately the same as if you listened to music through wired headphones.
There is a so-called Bluetooth Profile that describes the functionality of this wireless communication. In particular, the A2DP (Advanced Audio Distribution Profile) profile determines how well the sound will be transmitted (mono or stereo) when using Bluetooth.
A2DP, on the other hand, supports several codecs that encrypt the original digital audio signal for transmission over Bluetooth. All Bluetooth-equipped devices support so-called basic codecs (SBC), but may also support additional codecs such as Apt-X, AAC, MP3, etc. They provide better audio quality than SBC, and Apt-X is the most advanced audio codec available today.
The base SBC codec uses a limitation frequency range transmitted signal with a sharp drop in frequency response above 14 kHz, so it is not suitable for high-quality listening to music. MP3 and AAC codecs are built on the basis of unprofitable “intelligent” data compression with information losses, due to which the sound quality also deteriorates.
The Apt-X codec uses ADPCM audio processing technology, which is lossless data compression with support for 16 and 24-bit processing, and a dynamic range of up to 120 dB. In fact, the differences between it and MP3/AAC codecs are the same as between audio files compressed in MP3/WMA and FLAC/WAV. At the same time, the Apt-X codec can transmit audio encoded in MP3 and AAC without additional processing, without compromising its quality.
How to connect wireless headphones to your phone, computer or tablet?
As a rule, purchased headphones include detailed instructions. If you don’t have it at hand, then you will have to do the following:
- Configure Bluetooth on the transmitting device.
- Connect to headphones.
- Start audio transmission.
Setting up Bluetooth on your phone is very easy. Just go to settings and enable wireless network Bluetooth. Next is activated automatic search available devices. Check that the headphones are turned on (usually they are equipped with lights or indicators that allow you to quickly verify that the network is working). To turn on the headphones, find a special button on their body. When connecting, you will be asked for a password - enter “0000” or look for another PIN on the headphone manufacturer’s box.
It will be more difficult to connect to headphones through a computer, since desktop PCs do not have a radio module. You will have to buy a Bluetooth adapter separately. Connect it via the USB hole, insert the driver disk, and then through the “Toolbox” into “ Network adapters» Find your wireless network and activate it. To connect to headphones you will need to download special program. It is different for each headphone, so check the instructions for this or call the manufacturer.
Wireless headphones are connected to the tablet in the same way as to a smartphone. Please note that when you first connect, the device will be detected in the search, but after connecting it will disappear, since synchronization will take place automatically.
How to improve the sound quality of wireless headphones?
To ensure that the sound does not hurt your ears, you need to achieve maximum accuracy in transmitting audio through your headphones. To do this, use the Advanced Audio Distribution profile. To configure it you need to install suitable drivers- you can try installing Bluesoleil different versions, just keep in mind that they will work differently.
If you turn on a headset on a computer, do not let the headphones initiate the connection, otherwise they will do everything in their own way. Make sure that the sound is not spoiled by neighboring devices operating at a similar frequency. For example, it could be a router (Wi-Fi can take up one or more of the 79 Bluetooth channels). Also, do not place the transmitter and receiver behind thick walls - this will shorten the Bluetooth range.
And be careful not to use headphones for too long, especially mono devices. If you use a mono earphone on one ear every day, it will hear worse over time. Monitor the volume level of the transmitter so that a sharp grinding sound or interruption of the radio frequency does not deafen you or cause you to lose your hearing!
What to do if the device does not see the Bluetooth headset?
The reason may be the following:
- The headphones' battery is dead;
- you have not enabled device synchronization;
- Headphones were not turned on.
Sometimes your phone has automatic synchronization disabled, so you have to connect to the headphones manually each time. On a computer, you already have to do this - connect to the headset every time through a special program. Make sure the headphones are working before diving into the transmitter settings.
Instructions forBluetoothheadset
Charger:
The headset has a built-in lithium battery; Charge the battery until fully charged before use.
2. Connect Charger to the headset, via the charging port.
3. While charging led indicator will work, after the battery is fully charged, the indicator will go out.
Note:
1. A full charge takes about 90 – 120 minutes.
2. When charging for the first time, charge the device for at least 4 hours.
3. Carry out the first 3 charges only after the headset is completely discharged until the headset is fully charged.
4. The device will charge at temperatures from -10 to +45 degrees Celsius.
On/off:
1. Hold the “On” key pressed for about 3 seconds until the indicator turns on, the device will be turned on.
2. To turn off the device, hold the “On” key pressed for about 3 seconds; After the indicator flashes 3 times, the device will be turned off.
Creating a connection with a mobile phone:
1. Before you start creating a connection, make sure that the headset is turned off.
2. Turn on the Bluetooth function on your phone.
3. Hold the “On” key pressed for about 5 seconds; the indicator will flash red and blue alternately (for Jabra and Motorola headsets the indicator will be constantly on), this means that the device is in connection mode.
3. Search for new Bluetooth devices on the phone.
4. In the mobile phone device window you will find the inscription “SANYO BL812”, “Jabra” or “Motorola”.
5. Select "SANYO BL812", "Jabra" or "Motorola" and create a connection.
6. Enter the connection PIN code 1234 For "SANYO B.L.812" or 0000 For "Jabra" and "Motorola", press the “yes” button, the indicator will stop flashing alternately in red and blue, and will start flashing blue (for Jabra and Motorola headsets, the indicator will stop constantly flashing blue and start flashing blue). This means the connection was successful.
7. After connecting the headset to the phone, be sure to restart the headset (turn it off and then back on after 10 seconds).
8. Now the headset will be in ready mode, you can make and receive calls.
Note:
1. If a connection is not created within 90 seconds, the headset will automatically go into standby mode. However, you cannot use the headset. Repeat steps 1-6 to create a connection.
2. When creating a connection; The recommended distance between devices is less than 1 m. There should be no metal obstacles between the devices. This headset has a PIN code of “1234” or “0000”. Different Cell phones have different ways settings, refer to your phone model's manual for instructions.
3. If a connection is created, it will be maintained even under the following circumstances:
1) the device will be turned off
2) one of the devices stopped working
3) one of the devices will be rebooted
How to receive calls:
1. When you receive a call, press the “Talk” key after you hear the call.
How to end a conversation:
1. After finishing a call, press the Talk key to end the call.
2. You can also wait until your interlocutor disconnects, then you will disconnect automatically.
Redial last call:
1. If your phone has the “Last Call Redial” function, you can use it using a headset.
2. The function is activated by double pressing the “Talk” key.
Volume control:
1. To increase the volume, press the Volume+ key.
2. To decrease the volume, press the "Volume-" key.
The manufacturer of micro-earphones is NANO phones.
Representative of NANO phones company in Nizhny Novgorod.
If your device cannot be configured to work with the headset in the standard manner, contact Plantronics Technical Support.
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Sound masking systems for creating an efficient work environment
Sound masking systems are new step towards creating an effective and comfortable working environment. Today, the most common type of office is “Open-office”, when there are no partitions in the office, and employees can move freely and communicate with each other. This has a positive effect on the atmosphere in the team and the exchange of information, and at the same time creates additional distractions, the main one of which is the speech of colleagues. It is very difficult to concentrate on work when you are surrounded by all sorts of conversations, and to which you have to be distracted without wanting to. The solution to this problem is the use of sound masking systems from Cambridge Sound Management.
In order for a wireless device for personal audio transmission to properly perform its functions, you need to know how to use Bluetooth headphones correctly. The main distinguishing feature of such accessories is the lack of a wired connection. They operate using radio waves, the frequency spectrum of which ranges from 2.4 to 2.48 GHz. When working with wireless headphones, the main requirement is that the device to which they are connected has Bluetoothmodule.
Majority modern models catches at a distance of 10 meters. The presence of several devices equipped with radio modules can cause certain inconveniences. During operation, they can connect to the devices being used and create additional interference. To minimize such situations, developers wireless technology have provided frequency hopping. Even if the frequencies coincide, this will only be expressed in a short-term disconnection, which the user may not even notice.
According to manufacturers, the range of new devices with versionBluetooth3.0 can reach 100m. In fact, this figure is several times less. In open space, accessibility in a zone of 50 meters, in buildings 10-20 m.
Ways to pair headphones via Bluetooth
Not all devices support wireless accessories. The receiver must be equipped with a Bluetooth module with a specific set of protocols.
The easiest way is to connect the headphones to a device that has built-in bluetooth. To do this, just activate wireless connection on both devices. Then select the desired accessory on the active receiver and allow pairing.
Things are somewhat different with devices that do not have a built-in radio module installed. They require special adapter. This is an additional device connected via a USB connector.
Most often it is needed for PCs or laptops. On modern phones or tablets this option is built-in.
Some models of modern Bluetooth headphones come with such an adapter. In this case, to set up a connection between devices, the user just needs to install the radio signal transmitter into the source from which sound will be transmitted (PC, TV, car radio).
How to connect wireless headphones to your phone
The process of connecting mobile gadgets and wireless accessories is quite simple, since both devices have a built-in Bluetooth module.
- Charge and turn on Bluetooth headphones.
- Activate the function on your mobile phone wireless transmission data (turn on Bluetooth).
- In the list of found devices, select the model of your wireless headphones and click “Connect”.
- Sometimes a PIN may be required. As a rule, this is a four-digit numeric code - it can be found on the accessory's factory box (most often it is “0000”). Pairing is completed, the accessory is ready for use.
If you do not remove the device from the list of connected devices, you will not need to resynchronize during further work; it will take place automatically.
Separately, it is worth noting about connecting headphones to detection mode. Depending on the model, the methods for activating this option may vary. The user should study the instructions in advance on how to turn on and use Bluetooth headphones. On some models, you need to hold down the power button or answer the call (in the case of a headset) for several seconds. As a result, the LED indicator on the case should change color or start blinking in a certain order. Other accessories have multifunctional wheel, which can be switched to the appropriate mode. Once the wireless device is ready to connect via bluetooth, you should look for it in the list of available devices on your phone.
Today you can also find hybrid models on sale that have two connection methods: wired and via Bluetooth. In this regard, many users have a question about how to connect USB headphones through the wire to the phone, because such a connector mobile gadgets Dont Have. In this case, you can purchase an adapter from mini USB to regular.
What are Apple AirPods
Questions about how to set up wireless headphones on an iPhone are especially relevant for owners latest versions such gadgets. In the 7th generation iPhone, the manufacturer decided to abandon the 3.5 mm audio jack familiar to many, and offers owners of newfangled smartphones branded AirPods headphones.
It is worth noting that they connect in the same way as regular Bluetooth headphones.
Management is thought out to the smallest detail. Thanks to optical sensors and accelerometer, the accessory recognizes the need for standby mode. The headset turns on automatically; no additional configuration is required. Playback of audio information begins when the user puts them on, and stops when they are removed. To switch the volume, answer a call or get directions, the user needs to activate Siri by pressing the sensor.
In music mode, AirPods can work up to 5 hours continuously. There is a possibility fast charging, thanks to a special wireless case. With it, you can not charge the headphones for more than 24 hours.
If Bluetooth headphones do not connect
If audio playback through a wireless accessory fails, the following possible causes should be ruled out:
- Headphone battery is low, as a result of which the accessory did not turn on;
- the sound source and headphones were not synchronized;
- The wrong accessory was selected from the list of available devices;
- deactivated on the sound source automatic connection added to the list of once installed devices.
It's easy to connect and set up wireless headphones. The main thing is to understand the features of the model and synchronize the accessory with the sound source. To avoid frequent disconnections, do not use paired devices at long distances from each other.
When you decide to purchase a gadget such as wireless Bluetooth headphones or headphones with headset capabilities, there are certain features you should know about working with them to get rid of annoying wires. Unlike regular headphones, Bluetooth headphones are a gadget with its own control system, connection and use features.
Therefore, so that you can choose the best and most convenient model for yourself, read the standard recommendations on how to use Bluetooth headphones. Please note that the possibilities different models may vary significantly, so please review carefully before purchasing. specifications and controls of the gadget you like.
Recommendations: 20 Best Wireless Bluetooth Headphones 
How to charge wireless headphones 
How to connect wireless headphones to your phone 
Basic functions of wireless headphones controls
Bluetooth headphones usually contain at least 3 hardware buttons, the functions of which can be combined depending on the options for pressing and holding time of the button. Here are the functions typical for most gadgets:
- Inclusion. In most models, this is a combined button that turns the headset on and off by holding it for a long time (several seconds). There are models with a separate power button, including in the form of a microswitch.
- Volume “+” and volume “-” allow you to adjust the power of the built-in amplifier. They often combine the function of rewinding to the next and previous tracks when listening to music.
- Play-pause button. Used to control the player. Often combined with the functions of turning on/off, receiving a call, calling the last number, and turning on voice dialing.
- Buttons for switching rewind to the next and previous track are used to control the player.
- There is a separate call acceptance button, which is also used to end a call and dial the last number.
- A hardware microphone switch can also be found on some models bluetooth headphones with headset functions.
- A button to switch the signal source, for example, to FM radio or an installed SD card.
Obviously, the more functions assigned to one gadget button, the less quickly you can control it. Therefore, you should pay special attention to the availability of the controls you need when choosing a specific model.
Connecting Bluetooth headphones
Connecting wireless headphones based on the Bluetooth protocol to mobile devices, laptops and personal computers has several distinctive features. You should be aware of them, especially if you plan to use headphones with different devices.
Connecting wireless headphones with a microphone to a computer via Bluetooth 
Connecting Bluetooth headphones to mobile devices
It's easiest to connect Bluetooth headphones to a smartphone or tablet. To do this, for the first time you need to turn on the headphones, the Bluetooth receiver in mobile device and search for available equipment. After this, you need to pair the found device. Then, if necessary, configure the parameters of data transfer protocols. For subsequent connections, simply turn on the headphones and Bluetooth on your smartphone or tablet. The connection should be made automatically.
Connecting Bluetooth headphones to a laptop
Most modern laptops contain a Bluetooth module, so you don’t need to buy anything extra. As preconditions for the possibility Bluetooth connections headphones can be called the Bluetooth module included in hardware or software in a laptop and correctly installed drivers Bluetooth.
You should look for them on the disk or on the manufacturer’s website for the one you have installed. operating system. Selecting a device and connecting to it is done through the computer's device management interface, which differs depending on the operating system.
If Bluetooth module no, or it cannot be configured due to the lack of drivers, the problem should be solved in the same way as connecting wireless headphones to a personal computer.
Connecting Bluetooth headphones to a personal computer
IN personal computer There is no standard Bluetooth module, so you will have to purchase it, install it in one of the free USB connectors and configure the drivers. If you initially plan to actively use Bluetooth headphones with a computer, you can consider purchasing headphones with a base that connects to the computer with a standard USB cable.
This model will cost more, but you are guaranteed to save yourself from possible difficulties with setup. In addition, the range of such systems is usually greater.
How to charge Bluetooth headphones
The need to periodically charge Bluetooth headphones is a kind of price to pay for freedom from wires. Charging is usually done using a standard USB cable that comes included. It is recommended that immediately after purchase, discharge the headphones until they turn off, and then fully charge them. You can repeat 2-3 complete charge-discharge cycles.
The built-in controller will not allow the headphones to be discharged to a deep discharge state and not be recharged. However, it is recommended not to leave a fully charged gadget connected to the charger for a long time.
If you don't plan to use your headphones for a while, charge them first. You can find out the operating time of Bluetooth headphones after the battery is fully charged from the instructions. However, it should be taken into account that the average operating time in the main modes is given there, which may differ depending on the mode of use of the headphones.