Harman Kardon GPS-300 4-Inch Portable GPS Navigator Vehicle GPS navigator with 2 GB internal flash memory and built-in MP3/WMA music player 4-inch widescreen LCD display with 480 x 272 resolution for clear, crisp map viewing Built-in U.S. and Canada basemap; Secure Digital (SD) slot supports up to 4 GB cards Portable mount with ball-and-socket joint for maximum viewing angles; USB 2.0 interface Includes carrying case; measures 4.3 x 3 x 0.8 inches (W x H x D); 1-year warranty