We offer three different types of wall click hidden cameras. We offer a self contained, wireless, and a hard-wired version. The self contained version records on motion detection to a built-in hidden SD card. The wireless wall clock has a camera and transmitter built inside of it and transmits the video signal wirelessly to the included receiver which then connects to your TV, VCR, or DVR for viewing or recording. The hard-wired version has a video cable coming out of it that would connect to your TV, VCR, or DVR.