Specification: Fuselage length: 600mm Main rotor diameter: 675mm Tail rotor diameter: 145mm Body Weight: 350 g Total weight: 680 g Main motor: 2500Kv, brushless motors Esc: 20-40A, 5V-15V Servo: 9g*4 Gyro: outer placed Battery: Li-polymer (11.1V, 1500mAh) Flying time: 15-20 minutes Description: 100% Ready to fly. Adopting normal 3D mode and the 3D mode with adjustable screw space High quality brushless motor (2500Kv), belt drive system, adjustable screw space in the tail blade, with strong power to resist strong wind 3D aerobatic flight capable The controller is equipped with 3D mode switch, PZT and PLT adjustable knob, and can be adjusted to the best flying state Installation: 6-ch Radio controller, four 9g servos, brushless+Esc, outer placed gyro, Li-polymer battery 11.1V, 1500mAh