4-Way Navigation Button; Volume Knob; Mode Knob - Motorola Astro APX Mobile 05 control head User Manual

4-Way Navigation Button

Use this button to scroll up, down, left or right.
Press and release one of the button to scroll from one entry to
the next one. Press and hold one of the button to have the radio
toggles through the list automatically (release the button to
stop).

Volume Knob

Use this Volume Knob to adjust the volume of the speakers by
turning it clockwise or counterclockwise.

Mode Knob

Use this Mode Knob to scroll through the channels by turning it
clockwise or counterclockwise.
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