QCC3031 APTXHD Audio AUX Lossless Music Hifi Bluetooth 5.0 Receiving Board TPA6132A2 Car Audio Amplifier Board,3.3-4.2V

1. No DC isolation power supply: suitable for lithium battery supply, used to ify Bluetooth headphones 2. With DC isolation power supply: suitable for recharging speakers, power amplifiers and vehicles to add Bluetooth function to soe common ground current sound and noise 3. AUX audio input, Qualcomm 5.0, APTX / ATPXHD, on, the default volume is maximum 4. TI amp TPA6132A2, better sound quality 5. KCOM is the common end of the button, and the other end of the button is connected to VOL +, VOL-, PREV, NEXT, PLAY, and the button cable is within 5cm Key Description: "VOL +": short press to increase volume, long press to increase volume "VOL-": short press to reduce the volume, long press to reduce the volume continuously "Next": short press a song "PREV": short press the previous song "PLAY": short press to Play / Pause, long press for 3 seconds to force pairing e, long press for 6 seconds to delete the pairing list style: DC 3.3-4.2V lithium battery powered without DC isolation colour: green Material: plastic Package Contents: 1 x Bluetooth receiver boardOnly the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.