RT21

The difference between Retevis RT21 and other

Comparison of Retevis H-777, Retevis RT21, H-777S Retevis RT21 is not only have the CTCSS and DCS function, but also add the scrambler function and help you filter more interference .The scrambler feature provides enhanced security for your important public safety and private security communications. Retevis RT21 work well for all various business, and it will have…

RT21

RT21 distance and suitable occasion

RT21 have the dependable range and strong radio body, so it not only popular for family use, but also widely used in various business activities.   What is the RT21 distance? RT21 walkie-talkie is 2 W, the usual transmission distance of the peer is 0.5–2.5miles, but it also be affected by your using environment,longer range in open…