HM 1#A rc helicopter Specification 1). Receiver: RX-2806 2). Gyro: WK-G012 3). All-up Weight: 398g (Battery included) 4). Transmitter: WK-2602 5). Brushless Main Motor : WK-WS-26-005 6). Brushless Speed Controller: WK-WST-20A 7). Tail Rotor Dia. : 140mm 8). Main Rotor Dia. : 550mm 9). Battery: 7.4V 1200mAh Li-Po 10).Overall Length: 545mm 11).Servo: wk-7.6-H / weight 6.0g / speed 0.08sec/60o(4.8V) / torque 0.8kgf.cm (4.8V) / dimension 21.5*11.8*21.7mm 12).Servo: wk-7.6-2 / weight 8.4g / speed 0.12sec/60o(4.8V) / torque 1.4kg/cm (4.8V) / dimension 22.5*11.5*24mm