An advanced, rugged, and waterproof outdoor GPS with pre-loaded hi-res topo maps, paperless geocaching, and expandable memory. Features include: 3" sunlight readable touch screen with user programmable buttons, Summit Series USA Topographic Mapping (1:24k Resolution), 3-Axis Electronic Compass & Barometric Altimeter Sensors, and a 3.2 mega-pixel camera with auto focus. 15 hours battery life on two AA. MicroSD expandable memory & 500MB internal storage capacity for user data. Wt: 14.2 oz.