TomTom ONE 3rd Edition 3.5-Inch Portable GPS Vehicle Navigator (Discontinued by Manufacturer) Help Me , emergency menu and real-time traffic capability Turn-by-turn spoken directions Millions of points of interest; TomTom MapShare instant map updates The world's #1 selling GPS; preloaded with maps of the United States and Canada Pocket-sized design; 3.5-inch touchscreen with 2D and 3D views