Lowrance iFinder GO2 112-49 The most compact, full-featured, highly-detailed 16-channel compact GPS+WAAS handheld - with 64MB of built-in memory packed full of mapping detail - for such a low price! Don't wait to give it a GO! Display 200V x 140H pixel resolution 2' (5 cm) diagonal display size High contrast Film SuperTwist Amber LED backlit screen 16-level grayscale GPS/Mapping Precision 16-parallel channel GPS+WAAS receiver Built-in, 64MB of memory preloaded with a background map of the continental U.S. and Hawaii, including enhanced shoreline detail, coastal nav aids, and wrecks and obstructions 1,000 waypoints/1,000 event markers/100 routes Up to 100 retraceable plot trails, with up to 10,000 points in any trail 40 map zoom ranges, 0.02–4,000 miles 42 graphic icons to mark special spots Internal back-up memory Specs Weighs 5.36 oz/151.9g with 2 AA batteries loaded (batteries not included) 5.15x2.12x1.24 inches / 13.1x5.4x3.15 cm pocket-sized Plus Includes wrist-strap accessory Waterproof up to IPX7 standard Runs on two AA batteries for over 48 hours Full one-year warranty