This is the Hitec Freedom 9S 9-Channel Synthesized PLL Receiver. FEATURES: Auto shift allows receiver to be tuned to any 72mHz channel with any modern FM transmitter Auto gain control Low Voltage warning and power indicator One year limited warranty INCLUDES: Hitec Freedom 9S 9-Channel Synthesized PLL Receiver with antenna bobbin, foam section and instruction sheet REQUIRES: Installing in aircraft and connecting battery and servos SPECS: Dimensions: 2.1 x 1.3 x 0.7" (52.5 x 32.5 x 18.5mm) Weight: 1.3oz (38g) Current Drain: Approximately 25mAh (excluding servos) Operating Voltage: 4.8 - 8.4V (4/5 cell NiCd/NiMH) 7.4V 2 cell LiPo Operating Temperature Range: 5° - 130°F (15° - 55°C) Antenna Length: 3.4" (1050mm) jxs 8/07/08 ir/jxs