Tag Archives :retevis RT40
How to set the SMS one-key call function of retevis rt40?
The blog mainly talk about how to set the MS one-key call function retevis rt40? ...
How to set work alone function of retevis RT40？
The blog mainly talk about how to set the work alone function of retevis RT40 ...
RT40 PMR446 Handheld DMR Radio with squelch function
RT40 PMR446 Handheld DMR Radio with squelch function, Strict squelch: the call distance is 1.4 kilometers.Normal squelch: the call distance is 1.7 kilometers. ...