Powering On And Off - Plantronics DISCOVERY 640 User Manual

"BEEP"
6

POWERING ON AND OFF

1. Turn 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.
NOTE: When the Headset is turned on, the
Headset Status Indicator will indicate the
charge level of the Headset.
Greater than 2/3 battery charge =
3 red flashes.
1/3 to 2/3 battery charge = 2 red flashes.
Less than 1/3 battery charge = 1 red flash.
2. Turn 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 when the power is off.