Camera drone quadcopter applications outdoor indoor type of model rtf ready to fly propulsion electric series dji phantom rc function follow protection return home flight time 23 min maximum speed 57 kmh descent rate 3 ms max altitude 6 000 m engine type 960 kv weight 1 280 g colour white camera with camera video resolution uhd 4k framerate 4k 30 fps remote control manual operation transmission modes radio smartphone control fre