Motorola MOTOSTART H500 - Manual (Page 12)

Call
Button
To turn your headset on, press and hold the
Call button until the indicator light flashes.
Then, release the button.
Note: Headset may take up to 4 to 5 seconds to turn on.
To turn your headset off, press and hold
the Call button until the indicator light flashes
rapidly and then turns off.
TURNING HEADSET
ON/OFF