Uniden GPS-352 MapTrax 3.5-Inch Portable GPS Navigator GPS navigation and mapping unit with a compact design, large 3.5-inch TFT LCD display, and cutting-edge technology Features text-to-speech navigation and pinpoint positioning accuracy down to three meters, all powered by NavTeq navigation software Automatically adjusts between night and daylight viewable settings in accordance with the time of day Includes a pre-loaded, full map of North America, over 4-million POIs, 2 gigabytes of internal map memory, voice-prompt functionality, and a 400 MHz processor for real-time accuracy Completely portable with a rechargeable 830 mAh Lithium-Ion battery, a weight of only 2 pounds, and dimensions of 9.5 x 4.5 x 8.5 inches (W x H x D)