DC 12V/5V QCC3031 APTX/ATPXHD Lossless Music 5.1 Receiver Board Amplifier Module for Audio Car Amplifier Speaker

Product selling point:1. Multe s for customers to choose from2. The products are made of high-quality materials, and the quality is guaranteed3. AUX audio input, BT 5.1, APTX/ATPXHD, power on, the default volume is the highest, and the volume of the prompt sound is moderate4. Support Android APP to modify Bluetooth name (support Chinese), pairing paword, custom EQ5. Stable product performance and long service lifeProduct Description:Three specifications are available:No DC isolation lithium battery power supply 3.3-4.2VDC isolated 5V power supply 4.5-5.5VDC isolated 12V power supply 10.8-13.2V1. No DC isolated power supply: suitable for lithium battery power supply, used to modify Bluetooth headsets2. With DC isolated power supply: it is suitable for modifying speakers, power amplifiers, and adding Bluetooth function in the car to solve the common ground current sound and noiseKCOM is the common end of the on, and the other end of the on is connected to VOL+, VOL-, PREV, NEXT, PLAY respectively, and the length of the on line is within 5cmKey Description:"VOL+": short pre volume up, long pre volume up"VOL-": short pre volume down, long pre volume down"NEXT": Short pre the next song"PREV": Short pre the previous song"PLAY": Short pre to play/pause, long pre for 3 seconds to force into pairing mode, long pre for 6 seconds to clear the pairing listSpecial function description:"PLAY": Pre and hold for 3 seconds to force into pairing mode, pre and hold for 6 seconds to clear the pairing list"PLAY" + "VOL+": Pre and hold for 1 second at the same time to enter the search mode"PLAY"+"VOL-": Long pre at the same time for 1 second to enter the searched mode"VOL+"+"VOL-": Long pre at the same time for 1 second to disconnect Shipping list:Module X1