Humminbird 800 Series 858C HD DI Combo GPS-Sonar DualBeam PLUS fishfinder. When widescreen is a must, start with the full-features 800 Series. View sonar images and charts side-by-side with a full range of technology options. The generous 7-inch HD screen, 16:9 aspect ratio and new super bright LED of the Humminbird 800 Series SwitchFire and Down Imaging gives you command of the most versatile sonar technology on the water. Not only will you find fish, you"ll find your way through unfamiliar waters with Humminbird ContourXD cartography. Take it to the next level by sharing sonar views, GPS capability, Radar and more with another Humminbird fishfinder via high-speed Ethernet connection. Includes unit cover.