7" Fishfinder screen with 7 color options to see fish and structure in maximum contrast. Built-in Sonar - GT20 transducer to get Garmin CHIRP traditional sonar and CHIRP ClearVu scanning sonar. Waypoint Marking - mark hot spots. High Sensitivity GPS - plan and create routes and view boat's speed. Quickdraw Contours - store up to 2 million acres of maps. Connect to ActiveCaptain app and transfer waypoints get notifications and more. IPX7 Waterproof. Dimensions: 9.3" x 5.5" x 2.3". Includes: GT20-TM Transducer. Power/data cable. Tilt/swivel mount. Hardware