HNYATX CSR8645 4.0 Low Energy bluetooth Audio Module Support Lossless Compression Speaker Power Amplifier with Backplane

Features Master CSR8645 bluetooth version V4 1 stereo audio module1 Call function support call 2 Function keys PLAY VOL VOL PREV NEXT high level 1 8V valid The key functions are introduced as follows PLAY play pause short press answer a call incoming call short press hang up in a call short press reject a call incoming call long press for 1S call back double click re pair long press 2 5S clear the pairing list long press 5S VOL Volume increase short press long press to continue volume increase VOL Volume reduction short press long press and continuous volume reduction PREV previous song short press NEXT Next song short press 3 LED light pairing status double lights flash alternately pairing is successful single light flashes4 USB sound card function5 Always in pairing when not connected no standby6 Control the external power amplifier mute pin MUTE with sound output high 1 8V no sound output low level 7 Support SBC AAC decoding Package included 1 x HNYATX CSR8645 4 0 Low Energy bluetooth Audio Module