Precise details:
Feature:
Product name: Bluetooth 5.0 decoder board
Chip type: JL AC6925A
Bluetooth version: V5.0+BR+EDR+BLE
Signal input: Bluetooth digital signal
Receiving range: up to 25 meters (changes according to the surrounding environment)
Signal to noise ratio: >=90dB
Frequency response range: 20Hz-20KHz
Signal output: 3.5mm audio interface + 2.54 3P reserved
Input voltage: DC 5-24V Micro USB power supply
Expansion interface: remote control interface*1, control interface*1, power interface*1, audio interface*2
Weight: about 3.8g
Size: 34.5*28*6.*mm
Package includes:
1 x Bluetooth 5.0 decoder board

Expansion interface description:
Control interface: external control panel can be connected to realize key operation.
Power input: support external DC voltage 5-24V power supply (the minimum allowable 3.3V, there is a low-power alarm).
Signal output: can output signal to power amplifier, tone board, karaoke board, etc.
Remote control interface: The remote control receiver can be installed and used with the remote control.
Note: All reserved expansion interfaces can achieve more functions, but you need to be welded by yourselves.
