Garmin GPSMAP 526s is a high-sensitivity GPS receiver with preloaded BlueChart g2 coastal charts and inland lake maps. It comes with a 5-inch color display, a built-in basemap, and a microSD card slot for additional maps and data storage. With its high-sensitivity receiver, users can expect excellent signal reception even in challenging environments. The preloaded BlueChart g2 charts provide detailed marine maps and inland lake maps for North and South America, Europe, Australia, New Zealand, and parts of Asia.