Sleek and rugged, the Garmin GPSMAP 64st is the next level of high-performance handhelds. Packing a wealth of Garmins best features, this model boasts a high-sensitivity GLOSNASS receiver and quad helix antenna for increased reception. 2.6 65K Color TFT 160x240-pixel sunlight-readable color screen displays Three-axis compass for accurate headings and a barometric altimeter track changes in pressure to pinpoint your precise altitude and monitor weather conditions. The 64st boasts an expanded 8GB internal memory, 250,000 pre-loaded geocaches, 5,000 waypoints and a one-year subscription to BirdsEye satellite imagery with support for Topo U.S. maps. High-speed USB interface allows quick transfers and charging of a NiMH battery pack (not included). The dual battery system can run up to 20 hours on two AA batteries (not included). Wirelessly share routes, tracks, waypoints and geocaches between compatible units. Load optional mapping using the micro-SD-card slot. Waterproof design. 6.3H x 2.4W x 1.4D. Wt: 9.2 oz. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: GPS.