1. Boot: Press the multi-function key in the shutdown state for a long time, and the white light flashes for 3 seconds to enter the boot state.

2. Shutdown: in the standby state, press the multi-function key for 3 seconds, and the red light flashes 1, and the shutdown is completed.

3. Pairing: in the shutdown state, press the multi-function key until the red light and blue light flash alternately, enter the pairing state, and operate the mobile phone to make it paired (some mobile phones will require the password to be entered: 0000).

4. Answering function: when there is an external call in the connected state, press the multi-function key to answer the call.

5. Hang up function: you can hang up when you are receiving a call or after receiving a call.

6. End of call: During the call, press the multi-function key once to hang up the call.

Indicator status

connection standby state: the blue light flashes once every 5 seconds. The standby state is not connected. The blue light flashes once every 2 seconds. Pairing state: the red and blue lights flash alternately. Charging process: the red light is always on. Charging is completed: the blue light is always on.