Discovery 610: How to Power On/Off
Power on the headset by pressing and holding the call control button until the headset status indicator glows blue. If you are wearing the headset, you will hear a beep when the power turns on. The headset status indicator will flash blue every 6 seconds when the headset power is on.
Power off the headset by pressing the call control button for 6-8 seconds until the headset status indicator glows red or until you hear the beep. The headset status indicator remains unlit until the power is off.