This surveillance system is well hidden inside a table mirror clock with a built-in transmitter. The camera and transmitter are invisible to the human eye. The hidden video camera will view in low, normal or bright light conditions. The camera's micro electronic sensor automatically adjust for any change of light. This covert system can be applied to almost any ambience. And this magic mirror digital clock  employ LED alarm clock with calendar ,hourly chime,12/24 hour display ,data-guard for external power failure ,FM scan radio, mini speaker .This model is battery operated or with power supply. The hidden camera and transmitter are built-in to each item and the included receiver connects to any TV with video inputs or VCR for recording. The camera is very easy to operate and no installation is required. To operate you just plug and play.