DESC: The Magellan eXplorist 310 GPS receiver comes packed with tons of helpful features and is ready to use right out of the box.The eXplorist 310 is pre-loaded with the World Edition map, which includes a complete road network in the United States, Canada, Western Europe, and Australia and major roads throughout the rest of the world. This unique preloaded map also includes water features, urban and rural land use, and city centers. Regional versions of Magellan?s Summit Series topographic maps are available for download to expand mapping coverage and level of detail.A vibrant, transflective color screen allows for the best readability in direct sunlight. To zero in on the exact location of a geocache, favorite fishing spot, or the next summit, the SiRFstarIII GPS chipset provides accuracy of 10-15 feet (3-5 meters). To keep your outdoor adventure going all day long, the device is powered by two AA batteries for 18 hours of constant usage. The eXplorist 310 is rugged, waterproof, and submersible (IPX-7).