Magellan eXplorist 510 Waterproof Hiking GPS Rugged, waterproof outdoor GPS with three-inch touchscreen and button controls 3.2 megapixel camera, microphone, and speaker to record geo-referenced images and voice notes "World Edition" preloaded map covers the globe, with details, roads, and land use areas Easy online experience sharing--supports GPX file format and connects to PC as external drive Powered by two AA batteries for up to 16 hours of use. VantagePoint software is compatible with Windows XP, Window Vista, Windows 7 (Not compatible with Macintosh computers)