The PTT Button can also be used as a
icon ( 
) will be displayed for 3 seconds and then disappear.
Up Channel/Volume Button (10)
In the standby mode, pressing this button will increment the listening volume. When in function edit mode this button will be used to adjust the unit’s settings.
Down Channel/Volume Button (11)
In the standby mode, pressing this button will decrement the listening volume. When in function edit mode this button will be used to adjust the unit’s settings.
MODE/VOX Button (12)
This button is used to select various feature settings in the GMRS and FRS modes. When pressed and held for 3 seconds, the VOX mode is entered and the VOX icon appears on the display.
External Speaker (SPK)/ Microphone (MIC)/CHG Jack (6)
This jack accepts both the supplied Audiovox boom microphone/headset connector and the wall charging adapter. For equipment and accessories for the GMRS602CH, refer to page 7 and/or visit the Audiovox web site at www.audiovox.com.
Scan Button (13)
With the unit in standby mode, press the Power On/Off Button momentarily to enable or disable the scan function; SCAN will appear on the display.
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