POWER SAVE
Battery Save feature extends the battery life by switching the receiver circuit power ON and OFF. This feature automatically activates during standby mode (RX mode without signal).
BACK LIGHTING
The Liquid Crystal Display (LCD) and function keys are backlit for easy viewing at night or in low light situations. The back lighting automatically switches ON every time a key (except PTT) is pressed. It turns OFF 5 secs after the last key is pressed.
KEYPAD LOCK
To prevent accidental entries, you can lock the keypad.
Press and hold the lock button until it beeps to activate Key Lock. 
icon appears.
To unlock the keypad, press and hold the lock button again. | icon |
disappears. |
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When the Key Lock is active, a warning beep will be heard if you attempt to press keys. (except for the PTT button)
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