JJRC X11 Feature App Additional Functions: Follow, Circle, Map, Indicate Flight, Electronic Fence Multiple sensors ensure stable positioning in various environments: stable hovering indoors and outdoors, not affected by the environment (outdoor GPS positioning, barometer height; indoor optical flow positioning, ultrasonic height) JJRC X11 Specs Brand Name: JJRC Item Name: X11 RC Quadcopter Camera: 2K […]