User's Manual

GT300 User Manual
6
z Pull back the battery and close its cover.
5 Product Overview
5.1 Appearance
5.2 Keypad and MINI USB interface Description
Keypad Function description
Power Key
• Hold down this key to turn on / turn off GT300
• On standby, press this key to lock/unlock the keypad.
Volume +/-Key
• On standby, press this key to Increase or decrease the keypad
volume;