Garmin(R) 010-01199-20 GPSMAP(R) 64st Worldwide GPS Receiver (Preloaded TOPO US 100K maps, 3-Axis Electronic Compass)
2.6″ sunlight-readable color screen; 160 x 240 pixels; High-sensitivity GPS/GLONASS receiver with quad helix antenna; Built-in worldwide basemap with shaded relief; 8GB of internal memory & microSD(TM) Card slot; 250,000 preloaded caches for paperless caching from Geocaching.com; High-speed USB & NMEA 0183 compatible; Up to 16 hours battery life; Requires 2 AA batteries, NiMH or lithium recommended; Includes carabiner clip & USB cable; Preloaded with TOPO US 100K maps; 1-year BirdsEye Satellite Imagery subscription; 3-axis compass with barometric altimeter; Bluetooth(R) or ANT+(R) connectivity;
