Cheerwing Syma X5SW-V3 FPV Explorers2 2.4Ghz 4CH 6-Axis Gyro RC Headless Quadcopter Drone UFO with HD Wifi Camera (White) 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