UDI U818A 2.4GHz 4 CH 6 Axis Gyro RC Quadcopter 818A + U830A (Holiday Special Combo) 6 AXIS GYRO with posture control - Integrated design guarantee the precise positioning of the aircraft. 4 CHANNEL function provide stable flying and easy operation. Video Camera FPV. High Capacity Battery And Strong Power Motors Enable The Helicopter To Fly Much Longer And More Efficiently. Modular Design makes it easy to install and repair. Remote Distance is up to 30m.