1. Power on: long press the multi-function button in the shutdown state, and the white light flashes for 3 seconds to enter the power on state.

2. Shutdown: long press the multi-function button for 3 seconds in standby mode, and the red light flashes for 1 second, and the shutdown is completed.

3. Pairing: in the state of shutdown, long press the multi-function button until the red light and blue light flicker alternately to enter the pairing state, and then operate the mobile phone to make pairing (some mobile phones will require the input of password: 0000).

4. Answer function: when there is an external call in the connection state, press the multi-function button to answer the call.

5. Hang up function: short press the multi-function button to hang up when receiving or finishing the call.

6. End of call: during the call, press the multi-function button once to hang up the phone.

Indicator status

Connecting standby state: blue light flashes once every 5 seconds without connecting standby state: blue light flashes once every 2 seconds pairing state: red and blue light alternately flashes charging process: red light is always on; charging is completed: blue light is always on