Widescreen slim GPS design with 4.3-inch WQVGA touchscreen display; features improved graphics and a new slide control for menu operation Pre-loaded with City Navigtor NT maps for North America, including more than 6 million points of interest Bluetooth wireless technology enables hands-free calling with a compatible phone; traffic receiver provides North America traffic information Public transit mode allows you to navigate using buses, tramway, metro, and suburban rail systems Pedestrian navigation capability enabled through optional CityXplorer maps NOTE: Model number on the box is 1390T because the traffic receiver is included However, the model number on the device itself is 1390 as the "T" in 1390T refers to the additional component