The new echomap CHIRP comes with Clearly Scanning sonar technology. The smart GPS devices which lie under Garmin CV Series offer Built-in CHIRP traditional sonar and CHIRP. Also, this dedicated SV Series devices helps you with the built-in CHIRP traditional sonar, CHIRP clearer, and CHIRP sidevü capabilities. Also, the exclusive CV Series comes with built-in 500 w Chirp traditional sonar and Chirp clearvü scanning sonar whereas the SV Series offers all of the same Features Plus Chirp sidevü scanning sonar. It is loaded with the best-in-class Internal 5 Hz GPS – Internal 5 Hz GPS updates position and heading 5 times per second to make marking and returning accurately to waypoints easier.