The Scosche PowerFuze Pro lets you charge up USB gadgets, such as your phone or portable media player, either in the car or in a wall socket. It's a wall adapter that has a USB port in it, but it also has a detachable car adapter. When plugged into the wall, it offers 2 USB ports. But pop out that second port, and you can plug it into the cigarette lighter in your car. Pretty clever.