kakbeir xs816 rc drone with 50 times wifi fpv 4k /720p dual camera optical flow quadcopter selfie dron vs sg106 m70

specifications: type: quadcopter features: camera,wifi app control,wifi fpv functions: 3d stunt,aerial pgraphy,camera,forward/backward,fpv,g-sensor mode, gesture mode,headless mode,one key automatic return,optical flow positioning,slow down,speed up, turn left/right,up/down,waypoints,wifi connection remote control: 2.4ghz wireless remote control,wifi remote control channel: 4-channels radio mode: mode 2 (left-hand throttle),wifi app detailed control distance: about 50m compatibl...