This is the 6 Channel Hitec Optic 6 FM/Q-PCM Radio Control System with Spectra Module and HFD-08RF 8 Channel FM Receiver. Power Plane/Sailplane and Helicopter Mixing Capability FEATURES: Spectra Synthesized Module for tuning on all 72 Mhz channels, Programmable shift allows usage with all PPM/FM receivers, Eight model memory with model naming capability, Assignable switches, Throttle lock and engine cut, Dual Timer, CCPM and CROW mixing, Throttle and pitch curves, Two open mixes, End Point Adjustment (EPA), Digital trims, Dual rates, Exponential, Fail safe, Charge jack, Trainer jack, One year limited warranty, INCLUDES: One Optic 6 transmitter with Spectra module, One HFD-08RD 8 channel FM receiver, One CG25A AC Charger, HRCP3025, #58207 8 cell 9.6V 600mAh Transmitter Battery, Instruction manual, Hitec sticker sheets, Antenna flag set, Hitec Flight Preserver foam padding, Velco mounting pads, REQUIRES: Servos of modeler's choice, 72MHz Dual Conversion Receiver Crystal