The 27 MHz band is legal in most, if not all, countries for use with all types of RCs. Subject to interference from adjacent CB Operation. Note:cheap toys seem to usually use Channel 4 if there is no channel stated. * 26.995 MHz -- Channel 1 -- Brown * 27.045 MHz -- Channel 2 -- Red * 27.095 MHz -- Channel 3 -- Orange * 27.145 MHz -- Channel 4 -- Yellow * 27.195 MHz -- Channel 5 -- Green * 27.255 MHz -- Channel 6 -- Blue - Shared with CB Radio Service, never an "exclusive" channel