[Microphone Gain]: Set the microphone gain of the internal
microphone.
[Wireless Mic Gain]: Set the microphone gain of the wireless
microphone.
[Headphone Mode]: Set the access mode of the headphone
system (voice mode or call (phone) mode).
[Keep Headset Connected]: Select the continuous connection
and operation via the headset
[Tone]: Turn on/off the beep tone on the device.
[Power Saving Mode]: Turn on/off the power saving mode.
[Reset Settings]: This will reset all user settings- back up
settings before performing this.
[Factory Data Reset]: This function will restore all the data of
the radio to the factory settings. Please back up data such as
frequency and channels before performing this operation