Garmins echoMAP Plus 73sv boasts a transducer for traditional CHIRP sonar that delivers exceptional target separation, ClearV and SideV scanning sonars that provide a realistic view of everything below and to the side of your boats and supports Panoptix sonar that gives you a complete underwater view. Easy-to-read 7 sunlight-viewable, touch-screen display. Pre-loaded with LakeV HD maps for a detailed view of 17,000 lakes 13,000 of them with 1-ft. contours so you can quickly find the most productive spots. Quickdraw Contours mapping software lets you create custom maps with 1-ft. contours so you can find the likely hotspots on the most secluded waters. Built-in Wi-Fi allows you to connect to ActiveCaptain app for downloads, updates and notifications. Create, then share, waypoints and routes with other echoMAP and Striker devices. NMEA 2000 compatibility puts all your important controls and data on one screen. Quick-release makes it easy to transfer from boat to boat. Comes with both a transom and trolling-motor mount. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Sonar/GPS Combos.