Built-in Quickdraw Contours mapping software lets you create and store up to 2 million acres of maps with 1’ contours Bright, sunlight-readable 4.3” display and intuitive user interface Built-in GPS lets you mark waypoints, create routes and view boat’s speed Rugged design for every fishing environment with a water rating of IPX7 Transom and trolling motor mounts included The STRIKER Plus 4cv fishfinder with a bright 4.3” display and built-in GPS features Quickdraw Contours mapping software that lets you create and store up to 2 million acres of maps with 1’ contours. Garmin CHIRP traditional sonar provides remarkable target separation, and CHIRP ClearVu scanning sonar shows nearly photographic images of what passes below your boat. The built-in GPS lets you view, mark, and navigate to your favorite waypoints; even check your speed on the screen. This easy-to-use, rugged device is designed to help you catch more fish.