Group tones suppor ted
RT21 Scrambler function
The scrambler feature makes your transmissions sound garbled to anyone listening without the same scrambler code. It does not guarantee confidentiality, but it adds an extra layer of privacy.
Battery Save Function/Power Protection Function
Save and protect the battery power.
Strictly filtering out excessive background noise,Setting it to improve the call quality
at different geographical conditions and environment.
VOX: make hands-free
NO need press PTT to launch, particularly apply to some hands-free occasions, such as holding objects, working or driving.