Skyartec WASP V4 BELT 250 CNC 2.4Ghz 6 Channel RC Helicopter Almost Ready to Fly (Without TX/RX) Adopts CCPM control component , metal swashplate,tail rotor and Belt driven system, professional gyro, which ensure the helicopter react fast on any kind of 3D acrobatic flying courses and fllight stability High quality CNC alloy rotor head dopts Light weight,Ultra tough Carbon Fiber side board Using alloy tail boom Can fly in skyway, backward, and 3D aerobatic 120 degree CCPM system provides precise movement if comparing with the traditional mechanical mixing since there are less linkage/push-rod in the helicopter and weight is greatly reduced mproved blades give superior lift. Their pop off design gives extra protection in case of heavy landing