This device is the size of a palm pilot. you can play a cd, and radio. it maps states, brides, oceans, streets, railroads, interstates, highways, gas stops, scenic routes, police/fire stations, restaurants, residential, commercial, and industrial zones. It maps out the gas used, gas left, trip time, the fastest way to get there, total miles covered, and what direction your're traveling in. this device will get you there faster than ever before!