This tire inflator, also known as an air compressor, is actually very handy to have on hand. Especially for those of you with children. One of the key features that sets this air pump apart from others is its ability to be powered from an AC wall outlet or DC cigarette lighter socket. Most air pumps I've seen lately are usually one type or another. It also has a nice, clear, readable display screen. Allows you to set the pressure you want and then turns off immediately. This is a good general air pump that I would recommend to others.