"The Humminbird HELIX 7 CHIRP SI GPS G4 Fish Finder/Chartplotter puts every detail of the underwater world right at your fingertips. This robust Humminbird fish finder sports a spacious, vivid 7"" display so you can easily view all the powerful technologies. Dual Spectrum CHIRP provides long, well-defined fish arches and a clear view of fish-holding structure and the bottom, with 2 ways to search: wide mode for maximum coverage and narrow mode for maximum detail. The built-in Humminbird Basemap provides you a clear view of underwater terrain and surrounding points of interest so you can fish and navigate with total confidence. Identify buoys, day markers, hazards, marinas, contours, depth markers, and much, much more. Includes charts of more than 10,000 lakes, plus U.S. coastal coverage. Compatibility with Humminbird LakeMaster and CoastMaster charts, as well as your choice of compatible Navionics charts, lets you get a complete view of the world below. AutoChart Live creates real-time maps of your fishing spots, with access to patented Humminbird LakeMaster features. Map depth contours, bottom hardness, and vegetation as you drive your boat. Includes Low-Q CHIRP transducer, power cable, gimbal mounting bracket, and mounting hardware. Mfrs. 1-year limited warranty. Powerhouse Humminbird HELIX fish finder Vivid, 7"" display Dual Spectrum CHIRP Built-in Humminbird Basemap of charts and maps of more than 10,000 lakes AutoChart Live real-time mapping"