Motorola HS801 - Manual (Page 14)

12 Using Your Headset
headset will not work while
charging. Your headset fully charges
in approximately two hours.
3 When charging completes (indicator
off), remove the charger from the
electrical outlet, press the release
tab, and detach the charger from the
headset.
4 To power your headset on or off,
hold both the MFB and either volume
button until the LED turns on.
When the headset is On the LED
will flash every 3 seconds.
Note: You can also use a Motorola
Original Vehicle Power Adapter to
charge the headset battery while in your
vehicle.