Review on Retevis RT22S Walkie Talkies - Rechargeable 2-Way Radios with Long Range, 22 Channels, Display Lock, Earpieces, Emergency Alarm, Signal Prompt, VOX (4 Pack) by Phil Kowal

Despite the specified frequency range of 450-480, there is still no software that allows you to change the set frequencies 1-22 GMRS/FRS. Various CTCSS/DPL codes are preloaded which do nothing for privacy except that you cannot hear others on the same channel. The audio scrambler works, only on/off, hardly compatible with many ham radios like Wouxan, AnyTone, TYT, which usually have 8 scrambling modes. They have good audio output, tactical headsets are fine. There is no time for serious tests yet