Avoid obstacles automatically. Track moving subjects automatically using ActiveTrack. TapFly lets you fly with a tap of the finger. Smart Return Home allows the Phantom to avoid obstacles as it returns home. 28 minute maximum flight time, maximum control range of 3.1mi (5km). Maximum speed of 44mph (72kmh). Integrated gimbal for greater camera stability and smoother footage. Optimized Vision Positioning System raises positioning altitude up to 10 meters.