SONAR: Humminbird(R) Basemap provides a clear view of underwater terrain allowing you to identify buoys, day markers, hazards, contours, depth markings and more CHIRP digital sonar allows you to view details that other forms of sonar won't show that are engineered to help you see individual fish, clearly identify bait, and structure, and reach greater depths and range Dual Spectrum CHIRP 2D sonar is powered by Low-Q CHIRP transducer to offer two different search options: Narrow mode for focusing on small details and Wide Mode for all-out coverage NAVIGATION: AutoChart LIVE create real-time maps of your fishing spots, map depth contours, bottom hardness, and vegetation as you drive your boat, with eight hours of built-in recording time Humminbird(R) and internal GPS includes charts of over 10,000 lakes with coastal coverage for the continental U.S. Precision GPS gives more accurate waypoints and boat position due to accurate position fix for a better fishing experience Smartstrike(TM) cards combine high definition LakeMaster(R) lake map data for extensive algorithms for easy location of fish and patterns during each season CONNECTIVITY: User-friendly menu system with pre-loaded views and softkey controls for easy and reliable operation in any conditions ADDITIONAL DETAILS: Includes transom-mount transducer, control head, gimbal mounting bracket, power cable, and mounting hardware Single slot SD slot for easy transfers High-definition display for clear imagery