TomTom GO 510 4-Inch Bluetooth Portable GPS Navigator (Discontinued by Manufacturer) High-quality, extra-wide, four-inch LCD touch screen; perfect size for moving from car to car Includes detailed maps of the U.S. and Canada--all pre-installed on a 1 GB SD card Speaks 36 languages in more than 50 different voices; Bluetooth integration Instant route recalculation, trip planning via PC, and massive points of interest database Measures 4.2 x 3.1 x 2.5 inches (W x H x D)