This is the Ofna HNT-3 2.4GHz FHSS 3-Channel Surface Radio System. Transmitter and Receiver only, no Servos. FEATURES: Programming features for nitro and electric vehicles Steering dual rate adjustment, dual rate override and end point adjustments Throttle fail safe Third auxiliary channel Steering and throttle trim ST/TH servo reverse switch Charging jack for NiCd battery pack (battery not included) INCLUDES: HNT-3 Transmitter HNR-3 Receiver Instruction Manual REQUIRES: AA Batteries: Eight for transmitter Servos of modeler"s choice SPECS: Transmitter- DC Power: 9.6 - 12V Spread Spectrum Model: FHSS Output Power: <=20dBm/18dBm Weight: 12.7oz (361g) Receiver- Spread Spectrum Model: FHSS DC Power: 4.8 - 6V Weight: 0.47oz (13.5g) Dimensions: 1.6 x 1.1 x 0.51" (40 x 27 x 13mm) jxs 09/20/11 ir/jxs