... simple set method. Futaba (1), channel number: 3 channels;(2), suitable models: cars & boats;(3), transmit power: about 20db;(4), frequency modulation: FM &GFSK ... interface: a;(10), power supply: 12 volt DC power supply (1.5AAA * 8);(11), Weight: 742 g;(12), Antenna Length: 26mm ... FCC; competing well in the world market. Fs 2.4G 3 ch .the professional gun-type RC Radio