Description of Garmin GPSMAP 60CSx The GPSMAP 60CSx adds several performance-enhancing features to the popular 60-series products, including a removable microSD™ card, high-sensitivity GPS receiver, barometric altimeter and electronic compass. Features: High-sensitivity GPS receiver gives you improved satellite reception even in heavy tree cover or deep canyons Barometric altimeter provides extremely accurate elevation data Electronic compass can determine your heading and direction, even when you're standing still IPX7 waterproof case can withstand an accidental dunk in the water and still perform Large, color TFT display makes viewing the screen easy, day or night Built-in Americas autoroute basemap, including highways, exits and tide data, gives you automatic, turn-by-turn directions