Brushless motor---More stable flight, good wind resistance, cage protective ring---has a protective ring, good protection performance, dual cameras----2 cameras, horizontal camera + vertical camera, flying over is more exciting. Steering gear electronically controlled camera--allows you to control the camera's angle with the remote control, making flying more fun. Dual batteries--longer battery life and longer flight time, Let your flight enjoy optical flow positioning more---The effect of setting the height is better, and obstacles are avoided during stable take-off----Avoid obstacles back and forth to avoid collision objects