The Humminbird HELIX Fishfinder is a worthy companion for any angling expedition thanks to easy-to-understand design and all-around performance. Reliable soft-key controls allow access to a user-friendly operating system. Dual Spectrum CHIRP easily switches from see-everything Wide Mode to more precise Narrow Mode for enhancing a single area of interest. Comes out of the box ready to work with a wide variety of accessories and add-ons to complete your fishing experience. Ethernet, Bluetooth and NMEA 2000 networking. Build a powerful, comprehensive fishing system thanks to a wide variety of inter-operable networking features. Add new technologies you need via Ethernet and Bluetooth. And new for this 4th generation of HELIX Fishfinders is a NMEA 2000 plug-in port allowing access to your network of NMEA 2000 accessories, no adapters required. 9 inch high-definition display with 1024x600 pixel resolution Dual Spectrum CHIRP Sonar for clear views of fish and fish-holding structure, easily switches between wide or narrow viewing modes Low-Q CHIRP Transducer AutoChart Live creates real-time maps of fishing spots, including depth, bottom hardness and vegetation. Records up to 8 hours of route information Built in GPS and Humminbird Basemap shows underwater terrain and surrounding points of interest Compatible with premium chart options such as LakeMaster, CoastMaster and Navionics High-speed Ethernet and Bluetooth-enabled NMEA 2000 networking One-Boat Network seamlessly integrates with other Humminbird, Minn Kota and Cannon products Includes mounting hardware, power cable, and gimbal mounting bracket