Cobra 3 Channel Radio Control Mid-Sized Gyroscopic Helicopter Built in Gyro System for Maximum stability Full function: up/down, forward/backward, turning left and right, fixed-point hovering. New digital full 3D control remotely with power saving mode. Electronic fine-tuning, flying more stable Complete Kit, Ready to Fly (Everything is included and 100% assembled -- only required 6 AA batteries for the radio transmitter to start flying)