High-sensitivity GPS receiver Barometric altimeter provides extremely accurate elevation data Electronic compass can determine your heading and direction, even when you''re standing still Waterproof to IPX7 standard Large, colour TFT display makes viewing the screen easy, by day or night Built-in autoroute basemap, including major roads, exits and tide data, gives you automatic turn-by-turn directions Runs for up to 18 hours from 2 x AA batteries (not supplied) Links to PC via USB or serial interface (USB cable included; serial cable not included) The GPSMAP 60CSx includes a removable 64MB microSD card, high-sensitivity GPS receiver, barometric altimeter and electronic compass. With the GPSMAP 60CSx, you can find your way in almost any conditions - its high-sensitivity GPS receiver gives you improved satellite reception even in heavy tree cover or deep canyons. The microSD card enables you to store extra maps from optional MapSource mapping software - simply connect to your computer with the USB cable, and you can load map data or transfer routes and waypoints. You can even purchase microSD cards that are preloaded with MapSource maps, which means you don''t have to connect to your computer. The microSD card slot is located inside the waterproof battery compartment, so you never have to worry about water getting inside. An optional accessory is the automotive windscreen mounting bracket, Order Code A11BL. Accessories Available:A10BLAutomotive Mounting BracketA11BLAutomotive Mounting Bracket, Suction CupA12BLAutomotive Navigation Accessory Pack, Europe (Includes Mapsource CitySelect, full unlock, automotive mount, friction mount, and 12V powercable)