Bluetooth Tws Multi Functional 7-color Diy Microphone Speaker Pcba7.4v 12w * 2 Amplifier Board

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  Note: The module chip model is a random number; Different batches have different numbers (including module models)

  Multi functional 7-color karaoke microphone speaker PCBA7.4V 12W * 2 karaoke amplifier board mini audio module kit

The product packaging list does not include batteries and microphones (as shown in the figure below) – PCBA*1+2P power cord*1+2P speaker cable * 2+3P light strip*1 (20 lights, with a length of 60CM)

7.4V lithium battery（The battery must be equipped with a protective circuit, and the discharge current needs to reach 3A）

Supports TF, USB flash drive, 3.5AUX, wired microphone (supports potentiometer ECHOT and MIC to adjust volume), supports potentiometer to adjust total volume

Bluetooth pairing name: BTP185

TYPEC USB 5V Input Charging

Stereo 4 Euro 12W Full Range Speakers * 2

Previous song: Short press to select a song

Play pause: short press

Next song: Short press to select song

Light effect/microphone voice change: (Short press button for light effect conversion, long press button for microphone voice change effect)

Mode: Long press the play button to switch between function modes, double-click to turn on or off TWS (note to double-click the main module first)

  TWS usage: Both the main module and auxiliary module are very flexible (the two modules cannot be connected to the phone’s Bluetooth at the same time!!). The first module that connects to the phone is the main module, which is connected to the phone’s Bluetooth and plays music simultaneously. Then, open the second module (the main module first double-click the play button, and then the auxiliary module double-click the play button); If you don’t remember which module was paired and connected before, then these two modules will not be able to connect when powered on at the same time; If the submodule is connected to a mobile phone or other device, there may also be a situation where it cannot be connected

Regarding the main module and sub modules: The main module and sub modules are freely determined, and the main module should first be connected to the Bluetooth of the phone (note that the two modules cannot be connected to the Bluetooth of the phone at the same time); Two modules cannot be connected when powered on simultaneously; In addition, if the auxiliary module or one of the modules is already connected to other devices, this situation may also exist

solve:

Remove all previously paired Bluetooth connections from the phone and restart the phone; Then do not turn on the power of both modules at the same time; One of the modules first turns on the power, pairs with the Bluetooth of the phone, and then plays music; Then open the second module (the main module first double clicks the play button, and then the auxiliary module double clicks the play button)

resolvent:

First, turn off the power of all modules, and at the same time, delete all previously paired Bluetooth connections on the phone, and restart the phone; Then do not power on both modules at the same time; The first module first turns on the power and pairs with the phone’s Bluetooth to play music; Then the second module is powered on and turned on. At this point, the main module double clicks the play button in Bluetooth mode, and the modules that are turned on later also double click the play button in Bluetooth mode to complete TWS pairing

The battery must be equipped with a protective circuit, and the discharge current needs to reach 3A