Self-propelled Bluetooth boosts AB class with automation for life. MP3862BTWake-up Bluetooth module for booster, active speakers or radios with hands free mode 4-channel booster with Bluetooth
A look at the powerful and compact powertrain with Bluetooth on board, a wide range of features and nasty characteristics.
Packaging and delivery.
Processing time is 2 days, delivery is another 13 days.
The track will be seen, posted outside, sent to the post office.
Vazhennya about the work of the store and delivery - good.
I picked up a standard Chinese package of black light by mail, especially trusting the wine without calling, the remaining parts were thin. 
Having opened the package, I soaked the booster in antistatic agent and 4 balls of foam rubber, which is completely sufficient to protect other elements from damage during transportation. If the post office tries, then it can be zlamati. 
Look around
<Фото в большом разрешении, советую кликнуть и рассмотреть поближе интересующие элементы.>
Rear view
There is nothing noticeable here, at least open it to allow heat to flow through the microcircuits to the lower part drukovanoy payment where is the great testing ground. 
Clothing
There is a snot of flux on the contacts, it does not flow onto the work, but it is clear that the board after soldering to the connector is not miles away. 
Pay as much as you can
The board is 5cm wide 
Dovzhinu 8cm 
І tovshchina 1cm
Ts 50x80x10mm
18650 for leveling 
Type of roses
The connectors for connecting the speakers are even manual, their design is structured so that they do not show darts (as opposed to cheap terminal blocks). The size is sufficient to connect to all the ingredients and the right amount.
Rose of life
The rose of life is universal or enriched from a ready supply. He can fit all the current laptop plugs. 
The board can be powered from 8 to 25 volts, nominally 20 volts.
When using 3 x 18650 batteries, no problems were noted, either with the surface charged or with the discharged up to 2.9 V each.
At the entrance there is a live diode in the form of a plus one. If you put the booster on a ready-made device, then the voltage can be increased to eliminate the voltage drop (about 0.3V).
There is no capacitor on the life line, as there is no place for the life of the module due to the batteries, so the capacitor itself is not required. 
Bluetooth module and booster
Front power booster on microcircuit N5532
I can’t say anything good about him, the ultimate low-noise dual-channel operational booster.
Due to the large range of power supply, a wide range of power supply units can be connected to the device, starting with 18650 batteries (3 pieces in a row) and ending with power supply units for laptops.
The vibrator has 90% efficiency (which at an output pressure of 50 watts gives 5 watts of heat.)
Recommended characteristics - 2 channels of 25 watts with speakers supported in 8th and live 20 volts.
Small datasheet error 
The microcircuit is intended for operation in televisions and monitors, but does not mean anything to use it for its own purposes - for operation with a Bluetooth module.
If the microcircuit can achieve a high output voltage, it does not require active cooling, all the heat goes through the lining and is distributed along the board.
However, under intense pressure, there is no significant heating of the board and microcircuits.
You can also see the secondary jumper on the board; all that can work is changing the signal amplification mode. I don’t really care, because if you switch the switch to ON, noise will appear (induction from bluetooth).
On the side of the store there is a wonderful description of the controls and power connections.
The purpose of the keys is duplicated on the seamography. 
Z'ednannya
Installation of connection with Windows 10
I have Asus laptop rog gl552vw, also a board module for Intel with wifi and bluetooth 4.0
To connect the booster you need to go to the bluetooth settings (click on the button on the panel below)
then right click on the bluetooth icon and select “go to settings”
We see a list of available Bluetooth devices.
We select our booster, which is visible in the icon in the headphone view. 
We press to connect and check for connection. 
After connecting, 2 new devices will appear on the volume control panel.
When this happens, the sound will be weak. 
As a standard device, select “headphone”, click on “headphones” and click on the “getting ready” button at the very bottom of the window. Now the sound will be normal.
A little bit of information
The headphone has a low-quality audio format and is intended for use only. 
The headphone mode has a pleasant intensity for music. 
About bluetooth devices 
Connection to Android
Turn off bluetooth, go to your settings, find our booster in the devices section, press on new, check for a couple. 
After receiving, you can enter and exit mode dartless headset and a dartless receiver of the media flow. 
When adjusting the volume level, the dynamics of the smartphone are adjusted to the level of adjustment of the Bluetooth device. 
Testi
If you talk about video, there will be no such thing; assessing the brightness of sound with a smartphone microphone is extremely stupid.
Harshness of sound on solid 4. Bass less often than most high density
High frequencies are not reduced.
So at home there is a MAISTERKIT BM2039 on a TD8560Q microcircuit (I bought it long before the crisis for 150 rubles), it has a little more bass and plays cleaner at high volume, but at the same time it gets hotter And there is food dating back to the 12th century.
Visnovok
The feedback about the product is entirely positive, the problem with life is simply a matter of purchasing a basic power supply unit for laptops, the standard power supply unit is 19V 4.7A and does not heat up during operation.
Good characteristics allow you to hear music at a pleasant depth without loss of brightness.
The drone-free connection turned out to be even easier, no more need for regular wires, just connect your smartphone, play music, and then your vikorist smartphone.
If you are in your home, you can connect two devices - a PC and a smartphone, the Bluetooth module will be alerted when the sound arrives and will be activated, without manually interfering with the signal.
So, when you are in the car, you can install a microphone and remove the Hands free headset.
The only thing that is annoying is the very quiet noise coming from the Bluetooth module.
Pros
-Bezdrotove connection
-Great radius I will receive
-Wide voltage range
-Compact dimensions
-Yakisne Vikonannya
-Simplicity in Vikoristan
-Low price
Minuses
- Dribbling noise in the speakers
-Wheeze at a very high volume
-There are no plastic stands as in the photo in the store
There is also the same booster, but with an additional line output for connecting headphones or another booster, the price is a little lower.
Yak UMZCH vikoristav stereo ULF for 20 watts per channel, which costs 20 dollars on ebay. It is necessary to disassemble it and look at the fillings of the case in order to understand the characteristics of the life of the module and where it should be placed. Once everything is screwed up, it looks like this.
Now about bluetooth audio transmission. He is ready to swim.
All at once - adapter and stabilizer, costs less than 8 dollars.
The Bluetooth audio receiver is shown in detail in the photo. Connect 3 darts to the audio socket.
Now solder the plug into the USB charger.
The smells are covered for 12 V. If the operator tries to supply 24 V, it will still work. Ale as the booster works more high voltage Or if you live right next to the 220 V limit, you will have to take USB charger Okremo or sukati reduced stabilized food on the payment of the UMZCH itself. You'll figure it out for yourself.
Now connect it to the bluetooth receiver and connect it to the power supply on the board - 5 volts. Both modules are attached to an aluminum radiator, as the most important element of the circuit.
Wire the input directly soldered to the line audio out of the power supply, if you want to add an active subwoofer or connect something similar, you will need to drill a 3.5 mm output in the rear panel. The bluetooth receiver itself must be securely attached to a separate place using hot-melt adhesive.
You can use any number of columns dartless acoustics, the signal is sent from a smartphone, tablet or computer from for help Bluetooth. For any DIY project you need:
Be it some kind of stereo speakers (for example, like an old music center).
- Powered by the installed Bluetooth module.
- Living block.
Subscriptions can be obtained on AliExpress or on another similar site. Clearly supportive cost 10 dollars or more, and there are models on sale that are simply folded out of the box, and in cases with buttons for adding a sound, controlling volume, and mixing tracks. Models in cases are a little more expensive, but you won’t have to independently remove the case and poke around for the size of the button.
Before powering up, you need to connect a life block (usually 12 volts), they are sold separately and are often listed on Avito and other online flea markets. To power up heavy-duty speakers, a power supply with a power supply of 2 or 3 amperes is required, and for small acoustics, a power supply of 1 ampere or less is required.
Connect to the booster column and the life block, press the receive button and install dartless connection Iz jerelom sound. Assuming everything is in order, the signal sounds, which means it’s time to turn on the music.
This booster most closely resembles the “power booster of the future” model: small size, high strength, low heat output during operation, and, most importantly, no audio input. The sound is supplied via a high-speed Bluetooth module. The signal can be transmitted from any media device equipped with Bluetooth: laptop, computer, old phone etc. The main advantages of the dartless method of sound transmission:
Subject to a changing background, different voltage levels, switch to darts.
The connection is large (up to 15 meters), walls and other structures do not cross.
It’s easy for a Swede to get the necessary equipment.
They don't respect the darters and wander under their feet.
For emergency purposes, this model is equipped with a microphone and a microphone. There are 5 buttons on the board: “PLAY, BACK, NEXT, VOL-, VOL+”, when connected to the device with these buttons you can skip the tracks that are being created and adjust the volume of the creation. How do we set up with what we pretend to be sound files A standard telephone can be connected to a microphone located on the board in the “hands-free” mode.
Poєdnannya.
Pidsilyuvach is designated as Bluetooth headset. Connections can be made without a password.
The drone-free digital booster with Bluetooth has a wide range of voltage - 8 - 26 V, which makes it possible to use it in a car.
Technical characteristics:
Microcircuit: TPA3116 protects against temperature and flow.
Bluetooth 4.0 module
Dzherelo life: unipolar
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