The Helix 7 CHIRP GPS G3 fish finder features Dual Spectrum CHIRP Sonar, Auto Chart Live, GPS and HUMMINBIRD Baseman built-in. The 7", ultra-wide display gives you ample room to view the many pre-loaded split screen view options. Dual Spectrum CHIRP: Before you cast, know what's down there thanks to long, well-defined fish arches, and a clear view of fish-holding structure and the bottom. Powered by our proprietary, Low Q CHIRP transducer, Dual Spectrum offers two ways to search: wide mode for maximum coverage and narrow mode for maximum detail. Switch Fire sonar: take command of how your sonar returns appear. With two display modes, you can add or remove detail, account for water depth, temperature and turbulence, even watch lure presentations - all at the push of a button. HUMMINBIRD Baseman built-in: our enhanced standard baseman provides you with 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 coastal coverage for the U. S. Auto Chart Live: create real-time maps of your fishing spots, with access to patented HUMMINBIRD Lake Master features. Map depth contours, bottom hardness and vegetation as you drive your boat, with eight hours of built-in recording time. Lake Master compatible: upgrade to the unrivaled accuracy and detail of HUMMINBIRD Lake Master maps. From easy-to-read contours, to highlighted depth ranges, to scrollable lake lists, you'll have all the tools you need to make every moment concludes transducer and mounting hardware, power cable, gimbal mounting bracket.