No training or practice neccesary - Waypoint mode, companion mode, Avatar mode and flight planning mode are all available with a single tap on the screen with the free EHANG play app. You break it we fix it. 1 year no - hassle warranty ; subject to terms and conditions. The ghostdrone automatically returns to its launch location when the battery is low or it loses communication with your smartphone. Performs: waypoint mode, companion mode, avatar mode, and flight planning mode are all available with a single tap on the screen with the free ehang play app. Maximum speed 19.2 metres per second. Maximum flying height 120 metres. 60 minutes charging time for 25 minutes flying time. Suitable for outdoor use. Controlled using smartphone. Wi-Fi enabled. Built in camera 16MP and 4K UHD video. Internal storage capacity 64GB. Batteries required: 1 x (included). For ages 8 years and over. This item is not a toy. WARNING(S): Not suitable for children under 3 years old. Only for domestic use. To be used under the direct supervision of an adult. General information: Size H19.5, W35, D35cm. Weight 1150g. Manufacturers 2 year frame guarantee.