The Safety 1st Sights and Sounds Assurance Monitor System includes a black and white video monitor. This monitor has separate controls for the video picture to be on or off, and then another switch to have the volume on or off. You can use both together or independently. Sound and video on, or just one or the other on or off. Very convenient. There are also dials on the back to control channel 1 or 2, contrast and brightness. There is another unit that plugs in via a/c that is the camera itself. It swivels so you can line it up to get the best position for the picture. This has a switch at the top for channel 1 or 2. Then there is a second receiver that picks up the sound only. This uses either a/c plug or you can use it with batteries. There are also light indicators on this receiver and/or you can use the volume control. This has a belt clip for carrying it around with ease. I have really enjoyed using, but the black and white monitor is not very clear to see the baby. I would have liked a sharper, crisper picture to view.