20Pcs bluetooth 5.0 Audio Receiving Module Car Speaker Audio Power Amplifier Board Receiver Board Lossless Sound Quality

Feature BT5 0 Audio PRO continues the excellent basic functions of M28 long distance transmission Bluetooth 5 0 backward compatible lossless sound quality etc and adds more user friendly performance as follows Charge while putting This product has a circuit of charging and discharging which can directly charge the battery through the USB power supply and Bluetooth can continue to work normally during the charging process and truly realize the function of charging and discharging Solve the pain point that some products can not be used during the charging process When powered by USB alone The red light flashes indicating that the power supply is normal When powered by a separate battery The yellow light is always on indicating that the battery power supply is normal the yellow light flashes indicating that the battery is low When the USB and battery are connected at the same time The red light flashes to indicate that the battery is charging the red light always indicates that the battery is fully charged Note that if the USB input is suddenly disconnected during the charging and discharging process there will be a few seconds of interruption due to the charge and discharge mode switching at this time after which Bluetooth will automatically restart automatically connect and maintain the previous playback state Incoming voice call function After the Bluetooth is connected turn on the call audio mode in the Bluetooth settings If the phone calls you can