there Are Numerous Wireless Cameras On The Market, But While They Do Transmit To Receivers Wirelessly, They Still Need To Be Plugged In To An Electrical Outlet For Power. The 2.4ghz Solar Color Pir Camera & Receiver Is A Truly Wireless Camera, Receiving All Of Its Required Energy From The Sun. With No Wires To Run, This Camera Installs Easily, Providing Security And Convenience In A Simple, Economical Manner.