Universal 2.4 G hz High Frequency, No Angle Limit;One Transmitter & One Receiver;Could Be Extended To 20 Users Provides;Turbo/Slow/Mapping/Programming Function;Support Digital / Analog Mode;our Channels For Selection By Dip Switch;Vibration Motor On/Off Switch; Use 3 PCS AAA Batteries , more than 18 Hours Playing Time;17 Buttons 2 Analog Sticks/2Led Indicator