QCC3031 APTXHD Module Audio Input -in Lossless HiFi 5.1 Receiver for Modified Speaker DC5V(4.5-5.5V)

QCC3031 APTXHD Module Audio Input -in Lossless HiFi 5.1 Receiver for Modified Speaker DC5V(4.5-5.5V) Popis

With isolated power supply: suitable for modifying speakers, amplifiers, and adding functions to cars to solve common ground current sound and noise.
When using TWS for boxes: the highest protocol APTX. Clear TWS pairing information: the highest protocol APTXHD (3031 default)
5.1, AAC/APTX/ATPXHD, power , TWS for boxes, AUX audio input,Support IPEX generation antenna, with mobile phone volume synchronization, support serial port AT commands (115200)
Support Android APP to modify name (support any language), pairing password, custom EQ, prompt tone.
KCOM is the common end of the button, and the other end of the button is connected to VOL+, VOL-, N/V+, P/V-, . Button Description: "VOL+": short press to increase volume, long press to increase volume; "VOL-": short press to decrease volume, long press to decrease volume; "N/V+": short press to next song, long press to increase volume; "P /V-": short press to the previous song, long press to reduce the volume; "": short press to /pause

Special function description:
"": long press for 3 seconds and release to force entering pairing mode, long press for 6 seconds and release to clear the pairing list
""+"VOL+": long press for 1 second at the same to enter the host mode to search TWS (with a prompt sound)
""+"VOL-": long press for 1 second at the same to enter the slave mode TWS is searched (with a prompt sound)
"VOL+ "+"VOL-": Press and hold for 1 second to disconnect TWS
"N/V+"+"P/V-": Press and hold for 6 seconds at the same and release, clear TWS pairing information and pairing password, reset (with prompt sound)
MODE/TWS key:
is not connected to the mobile phone:
Short press, host mode search TWS (with prompt sound);
Double click, slave mode TWS is sear