TECHNICAL DATA: * Fuselage overall length:750mm. * Total width:320mm. * Main rotor diameter:630mm. * Tail rotor diameter:145mm. * Flying weight:about555g. * Motor :380 (normal or brushless) Servo:4pcs 9g servos. * Receiver,speed controller,6ch transmitter,charger,foam blade. * Batter for option: 10.8V/650mAh Ni-MH battery; 11.1V,1800MAH Li-po battery.