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. This HELIX uses both MEGA Down Imaging+ and MEGA Side Imaging+ for unprecedented underwater clarity, with coverage extending both 200 feet below and 200 feet to the sides of your boat. Unlock more fish, more structure, more fishing capability than ever before. 12 inch high-definition display with 1280x800 pixel resolution Dual Spectrum CHIRP Sonar for clear views of fish and fish-holding structure, easily switches between wide or narrow viewing modes MEGA Down Imaging+ and MEGA Side Imaging+ adds unprecedented underwater clarity, with coverage extending 200 feet below and 200 feet to the sides of your boat 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