UDI U818A-HD 2.4GHz 4 CH 6 Axis Headless RC Quadcopter w/ HD Camera, Extra Battery The UDI U818A HD has the Headless/IOC function. Usually, the forward direction of a flying multi-rotor is the same as the nose direction. By using Headless/IOC, the forward direction has nothing to do with nose direction. This lessens the steepness of the learning curve and allows the pilot to enjoy flight while slowly learning each specific orientation of the quadcopter. 6 AXIS GYRO - Equipped with the latest 6-axis flight control systems, 3D lock, More scheduled flight, operating more to the force! 360 Eversion - One key 360roll,continuous roll for perfect action and wonderful performance HD Video Camera - U818A HD equipped with 1MP HD video camera (Resolution: 1280 x 720; Framerate: 30 Fps), lets you control the aircraft Enjoy taking pictures/video of the pleasure flights. Upgraded Accessories - Extend your play time with two LiPO Battery and a upgraded 4GB Micro SD memory card.