The Garmin Oregon 400 is a WAAS-enabled touchscreen GPS receiver with wireless capability. This unit comes in three versions outlined below, each of which have the same basic features like MicroSD card slot, USB port, electronic compass, barometric altimeter, 3-D map view(on selected maps), picture viewer and more but are each preloaded for individual use. The Oregon 400 series accepts preprogrammed MapSource cards for loading of terrain, water and street maps. It also supports HotFix satellite prediction, uploading of Geocaching.com GPX files, and wireless transfer of tracks, routes, waypoints and geocaches to other Garmin Oregon and Colorado users. These units are also waterproof and designed for outdoor use.