... or CCD sensor.6 LED lights,nightvision.handfree indoor monitor,7 inch TFT,clear image. intercommunication,monitoring the outdoor,unlock.. ... four monitors.(different choice)four wires,DIY installationIncluding in one kit:One indoor monitor, one outdoor camera, power adapter, user manual ... delay: 30S Dissipation: stand-by <0.5W working <10W Newest 7" Color intercom video door phone kit