Via the charger: The device turns ON automatically when removed from the charger. The device turns OFF automatically when placed in the charger.

Manually: To turn the hearing aids on; Press and hold the lower part of the rocker switch until the startup melody starts to play. Release the rocker switch while the melody is playing.

To turn the hearing aids off; Press and hold the lower part of the rocker switch for several seconds. A power down melody is played.