Operation mode:

1. In the state of shutdown, press the button for 3 seconds to start up; In the power on state, long press 3 seconds shut down;

2. (automatically connect the last connected bluetooth handheld device after starting up. If it is the first time started up, it will immediately enter self-matching mode.)

3. After pairing with the handheld device via bluetooth, the audio can be played. Short press \"pause\" and short press \"play\". In the call state, short press \"answer the call\", long press \"reject the call\", quickly double-click \"dial the latest call\". Right button) :

Play audio Short press \"next song\" and long press \"add volume\". Left button) : play audio Short press \"last song\" and long press \"reduce the volume\".

5. Power supply: the bluetooth cap is built with high-performance polymer 200MAH battery. The PCB board has charging protection for the battery, which can work while charging. (the red light will go on when charging, and it will go off after charging).