<p>Intuitive design and powerhouse performance make the Humminbird HELIX 15 CHIRP GPS G4N Fish Finder/Chartplotter an angler's dream. Master HELIX at the touch of a button thanks to the user-friendly menu system, operated by soft-key controls let you reliably operate your fish finder in any conditions. Dual Spectrum CHIRP sonar lets you know what's down there thanks to highly detailed fish arches and a clear view of fish-holding structure and the bottom. Dual Spectrum CHIRP support offers 2 ways to search: Wide Mode for maximum coverage, and Narrow Mode for focusing on the slightest detail. Enhanced built-in 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 more. Includes charts of more than 10,000 lakes plus coastal coverage for the continental U.S. This Humminbird fish finder provides the most complete offering of premium chart options available. Get a complete view of the world below with optional charts from Humminbird's LakeMaster® and CoastMaster™ products, as well as your choice of compatible Navionics® charts. Create real-time maps of your fishing spots with AutoChart Live, with access to patented Humminbird LakeMaster features. Map depth contours, bottom hardness, and vegetation as you drive your boat. Includes 8 hours of built-in recording time and is compatible with AutoChart Zero Line SD cards for virtually endless AutoChart Live mapping capacity. One-Boat Network compatibility lets you seamlessly integrate and communicate with Minn Kota and Cannon products to unlock more features and capabilities for anglers everywhere. High-speed Ethernet allows you to build a powerful, professional-grade fishing system. Easily connect multiple fish finders or upgrade to add-on technologies like Minn Kota i-Pilot Link and Humminbird CHIRP Radar. Take control right from the screen of your Humminbird with Bluetooth® wireless communication to compatible Talon® and Raptor® shallow-water anchors, as well as Cannon® Optimum downriggers. Built-in NMEA 2000 networking compatibility gives you insight into additional data such as weather and water conditions and boat performance. Additional features include wireless software updates from the Humminbird FishSmart app and display of smart phone notifications on your Humminbird.</p> <ul> <li class=>15, sunlight-viewable, high-resolution display</li> <li class=>Soft-key controls</li> <li class=>User-friendly menu system</li> <li class=>Dual Spectrum CHIRP support with Wide Mode and Narrow Mode</li> <li class=>Enhanced built-in basemap</li> <li class=>The most complete offering of premium chart options available</li> <li class=>AutoChart Live real-time mapping</li> <li class=>One-Boat Network compatibility</li> <li class=>High-speed Ethernet</li> <li class=>Bluetooth wireless connectivity</li> <li class=>NMEA 2000 networking compatibility</li> </ul>