Walkie-Talkie are potable hand-held devices used to talk to other users using similar devices on the same channels at preset frequencies.The frequencies can be in the FM, AM, SW, FRS, GMRS, VHF, UHF etc freqencies. Users are requested to check for local licensing requirements in their countries or state esp when buying VHF/UHF handheld devices. Fab.to.Lab cannot be held responsible for unauthorised use or modifications of these devices.