• How to properly charge wireless headphones. How to charge wireless headphones

    Increasingly widespread among users modern gadgets wireless headphones. There are several ways to do this wireless transmission sound (radio channel, IR radiation, etc.), among which the most popular bluetooth technology. Modern household radio equipment is already widely equipped with equipment that supports this method of data transmission, which allows you to connect headphones (aka headphones) to sound sources without additional devices. What they are and how to use them correctly Bluetooth headphones- will be discussed in this material.

    Bluetooth (literally from English - “blue tooth”) is a technology wireless communication, designed for data exchange between individual radio-electronic devices. The principle of operation of the Bluetooth module, which must be built into equipment that supports this technology, is the conversion digital signal to analog, transmitting it over a radio channel to another device, where the same module decodes it back into digital form.

    Information transfer between Bluetooth modules occurs at radio frequencies in the ISM range (2.4-2.4835 GHz). To prevent nearby pairs of radio devices from interfering with each other, the frequencies of the receiver and transmitter are synchronized before starting work, and during the transmission of the radio signal they switch synchronously.

    High noise immunity of the transmitted signal is ensured by the spread spectrum method with frequency hopping FHSS (Frequency Hopping Spread Spectrum), which is based on a pseudo-random sequence of frequency switching, known only to a specific “receiver-transmitter” pair. At the same time frequency tuning occurs 1600 times/sec(time slot is 625 µs).

    Important! The method of high-speed random frequency tuning, in addition to high-quality noise immunity, provides reliable protection transmitted data from unauthorized penetrations. In this case, to transmit information and audio signals, they are used different schemes coding.

    Bluetooth technology has been used for communication between various radio devices (mobile phones, laptops, mice, headphones, etc.) for quite some time. It was first demonstrated in 1989 (Bluetooth 1.0) and since then has been repeatedly modified, improving technical and consumer parameters. At the beginning of 2018 it is widely used bluetooth version 4.2, and the developers of the Bluetooth Special Interest Group (SIG) have already Bluetooth 5 specification announced(developed in 2016). At the same time, they guaranteed an increase:

    • signal transmission speed - 2 times;
    • range of action - 4 times.

    Advantages and disadvantages of the accessory

    Throughout 1989-2018, Bluetooth technology has been widely used in the creation of various models headphones and telephone headset(headphones + microphone). The popularity of this type of gadgets due to a number of advantages, which they have in comparison with analogues that use a connection using wires. Chief among them, of course, is freedom of movement. So, latest models well-known manufacturers (Nokia, LG, JBL, etc.) allow the owner to use Bluetooth headphones at a distance of up to 40 meters from the sound source.

    In addition, headphones operating using other technologies (IR, Wi-Fi) cannot fully compete with Bluetooth headphones due to:

    • low noise immunity;
    • insufficient protection of transmitted information;
    • lack of special sound support standards.

    The only drawback inherent in Bluetooth headphones is a certain degree of sound distortion, which is associated with the need for double signal conversion. Moreover, in this indicator they are second only to wired headphones such as Beats or Awei, designed for high-quality sound reproduction.

    Selection criteria

    When choosing Bluetooth headphones, it is necessary that they have the following technical characteristics:

    • reproducible frequency range (Hz) is no worse – 20-20000;
    • sensitivity (dB) not lower than - 100;
    • resistance (Ohm) is no less - 16 (headphones for a player) and 120 (headset for a computer);
    • Distance from the sound source (m) is not less than 10.
    • operating time without recharging (hour) no less than 10.

    Advice! When purchasing wireless headphones, it is recommended to pay special attention to their compliance with the intended operating conditions. So, if the gadget is planned to be used in a car, then such a parameter as distance from the sound source is not significant, but for listening to music, the range of reproduced frequencies is an important factor.

    The ergonomic features of the device are also important, from which depends on the reliability of their attachment to the head user and ease of use. It should be taken into account that there are two types of Bluetooth headphones available for sale:

    • sports - intended for use in harsh operating conditions;
    • full-size or overhead - providing comfortable listening to high-quality audio tracks.

    Controls

    Bluetooth headphones are devices equipped with own system management. Depending on their purpose, they are equipped with special control elements that allow efficient use various gadgets and determine functionality accessory Among them, this set of buttons is the most common.

    Considering that the control buttons can perform functions not only for their intended purpose, but also additional, when choosing headphones, you must first read the instruction manual, which lists all operating modes of the gadget.

    Connection

    Most modern radio equipment is equipped with Bluetooth modules, so connecting wireless headphones that support this technology to them will not be difficult.

    To phones and tablets

    The easiest way to connect the gadget is to smartphones and tablets running Android OS ( Samsung Galaxy etc.) and iOS (iPhone 5s, 7, etc.). To do this you need:

    • turn on the accessory;
    • activate the Bluetooth receiver in your phone;

    • configure your smartphone to search for available Bluetooth modules;

    • synchronize the operation of devices using prompts in the mobile phone menu;
    • Once synchronization is complete, the devices are connected and ready to work together.

    During subsequent switching on, no additional settings are required: the connection will be carried out in automatic mode. But in some cases it may be necessary setting up data transfer protocols.

    To laptop

    It is also easy to connect Bluetooth headphones to modern laptops. All of them are equipped with a pre-installed module that supports Bluetooth technology. The only difference can be whether it is enabled in hardware or software. In addition, the appropriate driver must be selected correctly. As a rule, necessary drivers are located on the discs supplied with the devices. You can also find them online and install them yourself.

    Advice! If, after completing all the settings, the laptop does not see the Bluetooth headphones, it is recommended to restart it and perform all operations again.

    If the laptop does not have a Bluetooth module, then the headphones are connected using an external adapter (transmitter), which is connected to one of the free USB connectors.

    To the computer and TV

    Computers and TVs do not have built-in wireless modules, so you also need to use an external adapter to connect Bluetooth headphones. You can set up the process on your computer by analogy with the procedure for connecting headphones to a laptop. And to connect to the TV via Bluetooth, you need to purchase Bluetooth headphones with a USB adapter, which is included in the package. This adapter looks like a regular USB flash drive that can be connected to your phone. In this case, the TV must have a USB connector and support the “Audio output to USB” function.

    Important! Not all TVs support the “Audio output to USB” mode. Even the fact that it is easy to connect to wireless keyboard or mouse will not guarantee that the TV is compatible with Bluetooth headphones.

    Now popular on the market SMART TVs TVs that have a built-in Bluetooth module. In that case if it supports the "Sound output to bluetooth device» (about which there should be information in the Operating Instructions for the TV receiver), just turn on this mode and the power supply to the headphones. The TV itself will find a new device and connect to it.

    Charging Bluetooth headphones

    The batteries built into Bluetooth headphones need to be charged periodically. Typically this is done through USB cable, supplied with the product.

    The electrical circuit of Bluetooth headphones includes a special controller that regulates charge and discharge levels batteries. It will not allow the batteries to discharge to “zero” (deep discharge) and will turn off charger, after the battery is fully charged. Despite this, after “running” a full cycle, it is recommended to charge the headphones without waiting for the batteries to be deeply discharged.

    Conclusion

    Currently, many active users mobile communications prefer a wireless device such as a Bluetooth headset (headphones with a microphone). She provides reliable connection with the phone over a sufficiently long distance and at the same time completely frees the user's hands. Due to these properties, such accessories are in high demand among car owners (especially Jabra).

    The most common way to purchase Bluetooth headphones today is to order delivery on AliExpress due to the most affordable price from the entire Internet space. However, in this case, in addition to the long journey, there is a risk of losing the package. That's why It is worth paying attention to official representatives of well-known manufacturers Bluetooth gadgets. So you don’t have to wait long for a new acquisition; an experienced manager will advise you best model, and there is a quality guarantee.

    To summarize, we should once again note the convenience of such a product high technology like bluetooth headphones. But it has been scientifically proven that Bluetooth technology generates a magnetic field, which, although weak, but long-term exposure to active points in the ear and the nearby brain can be hazardous to health.

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    Around the beginning of summer, I was lucky enough to purchase SVEN AP-B550MV wireless headphones. The headphones pleased me with their sound and autonomy. Thanks to good battery life, I didn’t immediately recognize that wireless headphones had become wired.

    One morning the headphones died and refused to turn on. Everything seemed simple. You take the headphones and put them on charge. But neither after an hour, nor after 2, nor even after 4 hours did the headphones turn on.


    Having disassembled the headphones, the first thing I did was inspect the board. The board was intact and had no visible damage. The second thing in line was voltage measurements. The tension turned out to be okay too. The battery produced 2.9v, both on the board and at the terminals. Connected the charger to standard port and measured the voltage at the output from the board. Nothing was going to the battery, so I connected the charger directly to the battery terminals. After a 10-second recharge from a 5v 0.5A source, I tried to start the headphones. They earned it.
    Since my experience in repairing any boards infinitely tends to zero, I didn’t touch anything (especially since the board was still connected via BT and played music perfectly).

    The simplest thing that seemed to me was to solder it to the battery and connect it to an additional connector.

    The connector was used from a set of adapters to accommodate the DC plug.

    The charging cable was soldered straight USB → DC. Everything worked, the headphones were charging. But there was one “BUT”. Charging had no control. Accordingly, when disconnected from charging, the battery could either not be fully charged or overcharged. And the latter is very undesirable.

    In order to control the charging process, I decided to use a small LCD voltmeter.


    To protect against overcharging, I used an FDC-2S-2 controller.


    The housing for this was the Housing for 2 AA batteries.


    Using a soldering iron and a knife, I soldered everything together and also made a hole in the case.

    However, I made a mistake and drew a conclusion from the power supply side, from which the information was not reliable.

    Having disassembled everything and soldered it correctly, I got the correct values.

    Result: The wireless headphones are now wireless again and charge without problems, plus I can now determine the battery charge level.

    Update: re-uploaded the photo.

    - the thing is not only convenient and practical, sometimes it becomes a real salvation for music lovers, but you need to know how to properly charge wireless headphones.

    Benefits of headphones wireless type

    There is no need to constantly waste time untangling constantly crumpled wires. They just aren't here. Athletes have also long appreciated all the advantages of such wireless headset. You can safely engage in your favorite sports without fear of accidentally snagging a wire, damaging the gadget’s connector, or even breaking it. Some professions require constant use of headphones. Using a wireless headset allows you to calmly move from your computer or laptop to a distance of about ten meters without interrupting your work process. This setting may differ depending on which model you are using.

    Secrets long work wireless headphones

    If all operating conditions for a wireless headset are met, it will serve the user for a long time.

    It is enough to follow a few rules for using such a device:

    1. Proper storage away from moisture and high temperatures;
    2. Careful operation, minimizing mechanical damage;
    3. Correct and correct charging.

    Most often, these three points are quite enough for wireless headphones to serve without problems for a very long period.

    How to charge wireless headphones


    Wireless headphones, like any other equipment, require regular charging. Otherwise correct work device may be broken.

    There are several charging features that must be taken into account when using such headphones, in other words, how to charge wireless headphones:

    1. Duration of the charging process;
    2. A wire that is used to recharge the device;
    3. State of charge of the headphones at the time of recharging;
    4. Selecting the charging method (from the network, from a computer or from a car).

    How long to charge wireless headphones

    On average, the charging process for wireless headphones takes approximately 2-3 hours. The exact amount of time depends on the model and manufacturer. This parameter must be indicated in the operating instructions.

    If the headphones have not completed the full charging time and are not charged 100%, this may result in damage to the device. Especially if you do such actions regularly. You may notice an increase in the discharge rate of the headphones and a deterioration in sound. To prevent this from happening, you need to complete the charging.

    Wireless headphone charging cable

    The headphones should always come with a special wire, which is necessary for charging the device. Manufacturers advise using just such a wire, if possible without replacing it with another charger. The secret is that the charger and headphones are completely adapted to each other. If you replace the charger, you can damage the headphone connector, as a result of which they will stop charging altogether. The voltage of different chargers may differ from each other. This way you can either reduce the charging speed or increase it. Neither the first nor the second option is useful for the device. After systematically using an incorrect charger, you can notice how the discharge rate of the headphones increases significantly. This can significantly shorten the working life of wireless headphones.

    Wireless headphone charging level

    Whatever the model of headphones, almost every one is equipped with special indicators that show the state of charge. Most often there are two or three of them. By the color of the indicator light you can find out how much charge is left in the device. Also, a critical decrease in the charging level can be understood by the deterioration of the sound. The reproduced sound will significantly reduce its level, and you may notice some distortion. Only in case complete discharge Wireless headphones should be recharged. Do not interrupt the process until complete.

    If the headphones are not completely discharged, but only by a certain percentage, then you should not charge them. If the unit is frequently recharged without being completely discharged, you may notice a deterioration in its performance. This method will definitely not extend the service life of the headphones.

    Selecting a charging method for wireless headphones

    Wireless headphones require regular charging. Can wireless headphones be charged from the mains? Chargers are made in such a way that you can carry out this process both from a regular outlet and from a computer using a USB connection. This does not particularly affect the charging time. If the user does not have the opportunity to recharge the headphones indoors, then this process can also be performed in the car. To do this, you need to acquire a special adapter. If your car has a USB connector, you can also use it.

    If all operating rules are followed, wireless headphones can last for quite a long period without problems or malfunctions.

    How to properly charge the headset?

    Master's answer:

    So, what makes a Bluetooth headset stand out? Firstly, there are no wires for communication, which is very convenient. Secondly, the headset can work with several phone models, not just one. However, such equipment requires its own power source to operate.

    Before you charge your headset, you need to make sure that it is necessary. In most headsets, the charging level is indicated by a special indicator a certain color. Typically these are green, yellow and red. However, some only use two colors.

    Next, you should connect a special charger to charge the headset. It is usually sold complete with the headset itself. If you don't have it, you need to purchase it. Of course, you can try to use the charger from your mobile phone for charging, but at least it will not match in connector, and the brands of the headset and the phone may be completely different. However, some companies produce both phones and headsets with the same connectors, so there is no need to buy anything in addition in this case. This occurs in, for example, Nokia or Apple. Still, it makes sense to buy an additional charger, even if the same one fits the phone, it will serve as a spare in case of emergency.

    If you spend a lot of time in the car, you can buy a special charger to charge both the headset and the phone from the battery. Battery energy costs are very low, but you will always stay connected, even if you are far outside the city or just outside the office/home. This will also be very useful in traffic jams, when the phone battery runs out at the most inopportune moment.

    You can tell whether the headset is sitting down not only by the indicator. This is also evidenced by the subscriber’s overall audibility, the quality of communication and its deterioration. Despite the statement about the safety of using headsets, still try to use them only when necessary and talk less in this way.

    However, if you are driving, then such a headset will serve good service, since it will not occupy your hands, and, therefore, distract you from the road, thereby protecting you from emergency situations.

    There are plenty of headset manufacturers now, but try to choose a headset from the same manufacturer as yours mobile phone. In this case, compatibility will be better, and the charger may not need to be purchased.

    With the development of smartphones, the same thing is happening and no less rapid development various accessories for them. In particular, all kinds of wireless devices, connected via Bluetooth - headsets, speakers, fitness bracelets, smart watches, etc. As practice shows, one of the main problems associated with their use is monitoring the battery charge level - very often situations arise when the battery on the paired device runs low inopportune moment. Let's look at several applications that can help solve this problem.

    BatON

    If your Bluetooth gadget supports the energy-saving GATT (Generic Attribute Profile) protocol, and has the ability to accept and reject incoming call, you can view its charge level using the BatON program. Download the application from PlayMarket, install and launch it.

    Use this utility very simple - in its main window a list of connected and compatible devices, a small icon will appear next to each of them, displaying the current charge level. Information can also be presented via desktop notifications.

    BatON has additional settings, in which you can configure the receipt of notifications, or disable them altogether. It is also possible to set the polling period for devices paired with the smartphone.

    Bluetooth Headset Battery

    If your wireless gadget does not support GATT, in this case you should use another application that works on a different principle - Bluetooth Headset Battery. When you install and run the program, you will see brief instructions on its use.

    The instructions are not written entirely clearly, so let's take a closer look at how to use the application:

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