Call Button (8)
When the call button is pressed, the 
) appears on the LED display while the call tone sounds.
Low Battery Alert
When the battery level becomes low, the battery icon ( 
) flashes. In this case, recharge or replace the batteries with new ones.
Monitor Button (M)
You can monitor channel activity by pressing the Monitor (M) button (2). If pressed for more than 2 seconds, you can continuously monitor channel activity. Press again, and channel activity monitoring is disabled.
Function Select (F) Button
Pressing the Function button will allow selection of frequency channels, as well as selection of the various unit functions. Each press permits selection of the desired channel 
) when pressed and held for more than 2 seconds.
Channel Selection
Press function button once until large 
) or Down (
) buttons to select desired channel
Channel Scanning
Press the Function (F) button two times until the SC icon flashes. Press the Up (
) button to enable the Scan function in the upward channel direction. Press the Down (
) button to enable the Scan function in the downward channel direction. Once selected, the Scan icon (SC) will appear steadily on the display. While in Scan mode, the unit will pause on any active channel for 5 seconds,