Garmin Striker Plus 7cv fishfinder has bright sunlight-readable 7-inch display and intuitive user interface, includes transducer for built-in Garmin chirp traditional sonar plus chirp ClearVü scanning sonar, built-in GPS lets you mark waypoints and create routes and view boat’s speed, built-in Wi-Fi for access to ActiveCaptain app so you can receive smart notifications, built-in Garmin Quickdraw contours mapping software lets you create and store maps with 1" contours for up to 2 million acres.