Whether you're sailing the high seas or hiking the back country, Colorado 400c Portable Navigator is your all-in-one adventure guide. Preloaded with BlueChart g2 coastal charts, Colorado is made with the saltwater mariner in mind. Packed with features, it includes a high-sensitivity receiver, barometric altimeter, electronic compass, SD card slot, color display, picture viewer and more. Even exchange tracks, waypoints, routes and geocaches wirelessly between similar units. When the going gets tough, Colorado leads the way.Built-in BlueChart g2 coastal charts and a worldwide basemap with imagery, perfect for all your outdoor pursuits. Map detail includes shorelines, depth contours, navaids, harbors, marinas, port plans coastal roads for the U.S. and Bahamas.With Colorado 400c you can share your waypoints, tracks, routes and geocaches wirelessly with other Colorado users. Now you can send your favorite hike to your buddy to enjoy or the location of a cache to find. Sharing data is easy. Just select "send" to transfer your information to other Colorado units.Colorado features a Rock 'n' Roller input wheel for easy one-handed operation and supports Geocaching's GPX files for downloading geocaches and detail straight to your unit. Customize Colorado's interface based on your favorite activity. Even show off photos of your excursions with its picture viewer. Slim, lightweight and waterproof, Colorado is the perfect companion for all your outdoor pursuits.