* Vivid, 7" display
* MEGA Down Imaging
* Dual Spectrum CHIRP
* Low Q CHIRP transducer
* SwitchFire Sonar dual display modes
* Basemap of charts and maps of more than 10,000 lakes
* Built-in Bluetooth wireless connectivity Master the underwater world like never before with the Humminbird HELIX 7 CHIRP MEGA DI GPS G3N GPS Fish Finder/Chartplotter. This robust Humminbird fish finder sports a spacious, vivid 7" display for easy viewing of the powerhouse array of technologies. MEGA Down Imaging brings unprecedented underwater clarity down to 125' below your boat. Dual Spectrum CHIRP provides long, well-defined fish arches and a clear view of fish-holding structure and the bottom. Powered by the proprietary Low Q CHIRP transducer, Dual Spectrum CHIRP offers 2 ways to search: wide mode for maximum coverage and narrow mode for maximum detail. SwitchFire Sonar lets you take command of how your sonar returns appear. With 2 display modes, you can add or remove detail; account for water depth, temperature, and turbulence, and even even watch lure presentations, all at the push of a button. The built-in Humminbird Basemap provides a clear view of underwater terrain and surrounding points of interest, so you can fish and navigate with total confidence. Points of interest also include buoys, day markers, hazards, marinas, contours, depth markers, and much more. Includes charts of more than 10,000 lakes, plus coastal coverage for the U.S. AutoChart Live creates real-time maps of your fishing spots with access to patented Humminbird LakeMaster features, such as depth contours, bottom hardness, and vegetation. NMEA 2000 Networking connects your HELIX to a NMEA 2000 backbone to gather a complete view of your vessel,