In this paper. we explore the properties of the Channel State Information (CSI) of WiFi signals and present a device-free indoor activity recognition system. Our proposed system uses only one ubiquitous router access point and a laptop as a detection point. while the user is free and neither needs to wear sensors nor carry devices. https://www.jmannino.com/mega-pick-Royal-Nomadic-5413-Rug-Ivory-Black-limited-super/