เสียงดี QCC3031 APTXHD hifi bluetooth 5.0

Size: 3.6x3.3CM 1. No DC isolated power supply: suitable for lithium battery power supply, used to modify Bluetooth headsets 2. With DC isolated power supply: suitable for modifying speakers, power amplifiers, and car-mounted Bluetooth functions to solve common ground current noise and noise AUX audio input, Qualcomm 5.0, APTX/ATPXHD, power on, the default volume is maximum TI amp TPA6132A2, better sound quality KCOM is the common terminal of the button, the other end of the button is connected to VOL+, VOL-, PREV, NEXT, PLAY, and the length of the button cable is within 5cm Key Description: "VOL+": short press to increase the volume, long press to continuously increase the volume "VOL-": Short press to decrease the volume, long press to continuously decrease the volume "NEXT": short press the next song "PREV": short press the previous song "PLAY": short press to play/pause, long press for 3 seconds to force into pairing mode, long press for 6 seconds to clear the pairing list