... you want to turn! Flybarless 3D HelicopterThree-Axis Gyro Control systemFlybarless Balance SystemThere will have some noise after you plug ... Hovering, Cabbing, 3D upside down flight action,Tiny adjustment,Speed ControlProduct list:Color Box-1, Helicopter-1,Instruction-2, ... average working experience of two years carry out strict quality control from raw materials, on-going production, semi-finished ...