The S400 is a fully autonomous drone capable of navigating complex environments without relying on satellite signals. It autonomously plans paths, maneuvers with precision, and explores three-dimensional spaces in real-time, effortlessly avoiding obstacles. With its simplified control system, operators can direct the S400 by simply clicking on the destination, eliminating the need for professional pilots. It excels in low-altitude areas with weak satellite signals and can operate in challenging environments such as woods or narrow lanes.