Wearing The Headset - Samsung HM3700 Owner's Manual

Checking the battery level
At the same time, press and hold the Volume down button and the Talk button.
Depending on the battery level, the indicator light flashes 5 times in one of the
following colors:
Battery level Indicator light color
Above 80% Blue
80 ~20% Violet
Below 20% Red
When the battery power is low
The headset beeps and the indicator light flashes red. Recharge the battery. If the
headset powers off during a call, the call will be automatically transferred to the
phone.

Wearing the headset

Place the headset on your ear. Depending on which ear you are going to wear the
headset, simply adjust the ear hook accordingly.