Garmin Striker Vivid 4cv, Easy-to-Use 4-inch Color Fishfinder and Sonar Transducer, Vivid Scanning Sonar Color Palettes (010-02550-00)Easy to use 4 inch color fishfinder with new vivid scanning sonar color palettes to easily distinguish fish and structure; tilt swivel bailmount bracket included Includes a GT20 transducer for built in Garmin CHIRP traditional sonar and CHIRP ClearV scanning sonar High sensitivity GPS to mark waypoints, create routes and view your boats speed Includes built in Quickdraw Contours mapping