The Dome Cam is a plug and play surveillance system, with a high quality CCD camera built inside the camera is virtually hidden. We integrate a 2.4 GHz 4 channel transmitters to create a wireless system for ease of placement and include a matching 4 channel receiver. Why 4 channels? This allows the user versatility in a wireless application. Each Dome Cam has a choice of black and white or color camera. If wireless is not the solution you are looking for we also stock wired versions of the same high quality item.