Sell Bluetooth Audio Receiver Board Bluetooth 5.0 Mp3 Lossless Decoder Board Wireless Stereo Music Module XY-WRBT Wireless Speakers best price

Product parameters: Product name: Bluetooth decoder board 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: power reverse connection protection Interface description: 1. Power supply can use Micro-USB mobile phone charger, 3.7-4.2V lithium battery, 3.7-24V DC power supply, you can choose one of the three. 2. Short-circuit the "on/off contact" for 2 seconds to set the decoder board to on/off. For battery-powered situations, turning off when not in use will save power and facilitate modification. Instructions: After the power is turned on, the blue indicator light flashes quickly and enters the Bluetooth mode; after the "prompt tone" is broadcast, it enters the pairing mode and waits for pairing; the mobile phone Bluetooth searched "XY-WRBT" (power amplifier board device name), click "XY-WRBT" to connect, after the connection is successful, a "prompt tone" will be played, and the indicator light will be on, then you can play mobile music and play When playing music, the indicator light flashes slowly; after the Bluetooth is disconnected, the amplifier board is ready for the next pairing, and after playing a "prompt tone", it enters the pairing mode and waits for pairing. Precautions for using 3.7V lithium battery power supply 1. When using battery power, the battery voltage is lower than 3.3V and the decoder board will automatically shut down. After re-powering or fully charged, short the on/off contact for 2 seconds to turn on. 2. When using a battery to supply power, if the battery voltage is too low, a "sizzling" noise may appear. In this case, the battery needs to be charged. 3. Since there is no lithium battery charging protection circuit on the decoder board, it is recommended to use a lithium battery with a protection board. 4. If your rechargeable battery supports MicroUSB direct charging, you can use MicroUSB to directly charge the battery. Package Included: Bluetooth decoder board x1