Garmin Striker Plus 4CV with CV-20TM TransducerSTRIKER Plus 4CV w GT 20TM Transducer 4 GPS Fishfinder with Industry leading Sonar and Quickdraw Contours Mapping Software Includes transducer for built in Garmin CHIRP traditional sonar plus CHIRP ClearV scanning sonar Built in Garmin Quickdraw Contours mapping software lets you create and store maps with 1 contours for up to 2 million acres Built in GPS lets you mark waypoints, create routes and view boats speed Bright, sunlight readable 4. 3