XY-WRBT Bluetooth 5.0 Audio Module Lossless Decoder Board Wireless Stereo Music Module Adjustable Speaker Power Amplifier

[Product Parameters] Product Name: Bluetooth Decoding Board Product Model: XY-WRBT Working voltage: 3.7~24VDC Bluetooth version: 5.0 Transmission distance: 15 meters (visible without obstruction) Signal to noise ratio: ≥ 90dB Distortion: ≤ -70dB Number of channels: Dual channel (stereo) Audio interface: 3.5mm audio interface Module protection mechanism: reverse power protection

[Interface Description] 1. Power supply can be provided by using Micro USB mobile phone charger, 3.7-4.2V lithium battery, 3.7-24V DC power supply, or any one of the three. 2. Short circuit the "on/off contact" for 2 seconds to set the decoding board on/off. For battery powered situations, shutting down when not in use is more energy-efficient and convenient for modification.

[Operation Instructions] After connecting the power, the blue indicator light flashes rapidly and enters Bluetooth mode; After broadcasting the "prompt sound", enter pairing mode and wait for pairing; Search for "XY-WRBT" (amplifier board device name) on your phone's Bluetooth, click on "XY-WRBT" to connect. After successful connection, play a "prompt sound" and the indicator light will stay on to play your phone's music. When playing music, the indicator light will flash slowly; After disconnecting Bluetooth, the power amplifier board prepares for the next pairing and plays a "prompt sound" before entering pairing mode and waiting for pairing.

Precautions for using 3.7V lithium battery power supply:

1.When using battery power, if the battery voltage drops below 3.3V, the decoding board will automatically shut down and restart Short circuit  the on/off contacts for 2 seconds after charging or fully charging to turn on the device. 2.When using battery power, if the battery voltage is too low, there may be a "sizzling" noiseSound, in this case, the battery needs to be charged. 3. As there is no lithium battery charging protection circuit designed on the decoding board, it is recommended to use the built-in protection circuit Lithium battery for protective plate. 4.If your rechargeable battery supports MicroUSB direct charging, you can use Micro USB directly charges the battery.