Turning the power off
Press and hold the control button for more than 5 seconds
A beep sound is heard and the Bluetooth indicator lights purple for approximately 1 second.
If the audio cable is connected when the headphones power is on, the power automatically turns off.
A small amount of power is consumed even when the power is off.
If the indicator does not light even when the control button is pressed, the batteries are exhausted. Charge the batteries.