Key tone ON/OFF Key-Lock Function Roger tone ON/OFF Low Battery Alert stopwatch function Select the battery type

Feature:

automatic/manual scan channel selection    38 groups CTCSS code   RF output power: 500mw   range:2-3km(in the open air)   SQL(squelch levels setting)   voice control(VOX for hand free operation)   auto timer power off function   TOT(time-out timer)   key tone ON/OFF   key-Lock Function   roger tone ON/OFF   low power alarm function   stopwatch function   call function   battery type selection   call tone function   monitor function

Cheap interphone QY80