2-Pack ZK-1001U Mono Bluetooth AMP Board with TWS,100W Vehicle Amplifier Input 9-24V Wide Voltage Home Audio Amplifier Board,Supports AUX/USB/Bluetooth Input for Home Speaker,Car Audio DIY

Feature:

• Genuine TPA3116:Equipped with an authentic TPA3116 mono amplifier chip, Built in intelligent boost circuit, which can automatically adjust the input voltage (9V/15V) to a stable 19V or 24V (default value: 24V). An additional red switch (1 for 24V, ON for 19V) is added, which can be manually adjusted according to different speakers to achieve the best audio-visual experience. It is very suitable for outdoor DIY projects using battery powered speakers.
• TWS BOX Mode:The upgraded Bluetooth 5.3 chip of Aideepen's audio amplifier supports AAC decoding APP, It also supports one click TWS pairing function to wirelessly synchronize two amplifier boards without wired connection, achieving immersive left/right channel stereo effect, which is very suitable for building your own wireless speaker system. Featuring high fidelity sound quality, low latency, and support for multiple audio input methods,it is easy and professional, suitable for your various parties.
• 3+4 Functions:3 Knobs, 4 Audio input modes. The knob has high frequency adjustment/low frequency adjustment/multifunctional knob, and the operation of the multifunctional knob is simple and smooth (long press to turn on/off, click to play/pause, double-click to next track, triple tap to enter TWS mode); Bluetooth/USB Flash drive/USB sound card/AUX 4 audio input modes, easily compatible with mobile phones, computers, MP3 players, etc., with strong practicality.
• Why choose us??:An additional power cable parts has been added to connect DIY battery projects, providing more convenience for your DIY projects.

Introductiontotheoperationoftheboxfunction:

1.Open two power amplifiers of the same model.

2.Choose a power amplifier at any time and hit the total volume knob with the button function in three consecutive strokes,at this time

The blue TWS indicator flashes,and the other power amplifier is automaticallypaired with the stereo combination.(lf the pairing is not successful within 15 seconds, the pairing mode will be automatically cancelled,youcantry againwith threekeys)

3.If the pairing is successful, the selected one will be assigned to the left channel with the blue indicator on, and the other onewill be the right channel with the blue indicator blinking slowly

4.The next time you start the machine, it will automatically find the right box.If you want to cancel the box mode,you only need to select a power amplifier,three in arow button can be.