Locking In Your Selection
To prevent the channel from accidentally being changed, you should lock the buttons of your FRS radio. This will disable the ▲, ▼, and scan keys.
1.Press and hold the lock button
for two seconds to lock the buttons.
The 
icon appears on the display
indicating the buttons are locked.
2.Press and hold the lock button again for two seconds to unlock the buttons. Or turn the radio off and then on again to unlock the buttons.
The call, on/off volume, PTT, MON, lock and light buttons will
not be locked.
Call Tone Transmission
If you want to contact someone in your party, press the call button. ”CALL” and the transmit icon appear on the LCD for 2 seconds. Anyone on the same channel will be alerted with your Call Tone.
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