The Safe-T-Line wireless camera and monitor is simple to set up and comes packed with features. The camera operates on 2.4 GHz wireless protocol (some wireless phones operate on the same protocol and may interfere with reception) and comes with a wide angle lense so you can view a large area. It also has 6 infra-red sensors to provide viewing in low light areas. The 5.5 inch black and white monitor provides a crisp, clear picture to give you a sharp image of your baby and can also double as a TV to pick up local channels (it is not cable ready). Audio is included so you can see and hear as well. Both the monitor/tv and the camera operate on AC adapters (both included).