Cheerson CX-20 Open Source 2.4G Remote Control RC Quadcopter UFO + GPS + IOC + Autopilot System CX20 Auto-Pathfinder FPV RTF VS DJI Phantom 2 (Open Source Version) Model 2 Radio Controller Only. No camera Failsafe & auto go home/landing Two flight control modes,including position hold Intelligent orientation control(IOC) Double Antenna Version,which can make the controlling range around 300 meters