Garmin Oregon 600t 3-Inch Worldwide Handheld GPS with Topographic Maps 3-Inch sunlight-readable, touchscreen display with multi-touch capability Dual-band GPS/GLONASS satellite positioning Sensors (3-axis compass, accelerometer, barometric altimeter) ANT or Bluetooth technology -wirelessly share routes, tracks, waypoints, geocaches, custom maps and photos between units Dual orientation - auto switching between landscape or portrait views Dual battery system -2 AA batteries or NiMH battery pack charged by the Oregon (batteries not included)