Turning the power on
Turn on the Bluetooth function of the Bluetooth device that you want to connect to beforehand.
Press and hold the headphones control button for approximately 1 second
When the pairing information is deleted, the headphones automatically switch to pairing registration mode when the power is turned on.
A beep sound is heard and the Bluetooth indicator lights purple for approximately 1 second.
The power turns on and Bluetooth function turns on.
The headphones automatically connect via Bluetooth to the Bluetooth device when the device is already paired with the headphones. link