Plantronics Discovery 975 - Manual (Page 8)

4
Charging Your Earpiece
Checking the Battery Level of Your Earpiece
Option A: The LCD display on the charging
case will indicate battery level of the earpiece
when earpiece is inserted into case.
NOtE The Bluetooth icon on the case indicates
the earpiece is connected to your phone. You can
receive calls when charging.
Option B: With the earpiece powered on,
simultaneously press and hold the call control
button and the volume button for about 2
seconds. The indicator light flashes red to show
the charge level.
Volume Button
Call Control Button
Option B
Option A