Futaba R2008SB 8-Channel 2.4GHz S-FHSS Receiver Equipped to handle high voltage applications (4.8-7.4V) in aircraft models Dual antenna diversity - seamlessly selects the best reception between two receiver antennas Frequency hopping spread spectrum design - shifts hundreds of times per second, so there are no signal conflicts or interruptions Work with S.Bus and conventional servos One-year limited warranty