This is the Futaba 7C 2.4GHz Helicopter Radio System
with the R617FS FASST 7-Channel Receiver.
This is the helicopter version which will default to heli settings when powered up and does not have a ratcheted throttle stick.

FEATURES: Futaba's FASST (Futaba Advanced Spread Spectrum Technology) shifts every two milliseconds virtually eliminating signal conficts and interruptions unlike other 2.4GHz systems that only stay on one or two frequencies
Dual antenna diversity enables FASST system to automatically and seamlessly select the best reception between the two antennas built into the receiver ensuring that the aircraft stays under constant control of transmitter regardless of altitude
Newly designed Dial-N-Key jog dial with joy stick button allows cursor movement in four directions for very user friendly
navigating through menus and programming