Lowrance iFinder GO Waterproof Hiking GPS (Yellow) Waterproof, handheld GPS navigator with built-in continental U.S. and Hawaii background map 16-parallel-channel GPS and WAAS receiver; 2-inch backlit LED screen with 200 by 140 resolution 32 MB of built-in memory saves up to 100 favorite plot trails 1,000 waypoints, 1,000 event markers, and 100 routes; runs for 48 hours on 2 AA batteries (not included) Includes wrist-strap accessory; measures 2.12 by 5.15 by 1.24 inches; 1-year warranty