Magellan eXplorist 610 Waterproof Hiking GPS 3-Inch LCD Screen 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 and Summit series USA topographic mapping Barometric altimeter and three-axis electronic compass for accurate altitude, weather, and directional info Powered by two AA batteries for up to 16 hours of use 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 and Summit series USA topographic mapping Barometric altimeter and three-axis electronic compass for accurate altitude, weather, and directional info Powered by two AA batteries for up to 16 hours of use