Retevis new dual PTT walkie talkie
All two way radios have a Push-To-Talk button.
This is the button, usually located on the side of the radio, that is held down to make the radio transmit
and then released when the user has finished transmitting and wishes to listen for messages from other radios
Retevis RB45 is an dual PTT walkie talkie, one PTT button on the side, the another one in middle of the radio










