Features :
CHIRP sonar advantages: - Easier to identify and distinguish bait and game fish targets - Better target identification at greater depths - Mark fish clearly at faster boat speeds - View multiple CHIRP sonar settings on one display DownScan Imaging™ provides picture-like images of fish-holding structure beneath a boat. Selectable single-frequency sonar operation with award-winning Broadband Sounder™ performance. High-resolution, 5-inch color display DownScan Overlay™ technology overlays DownScan Imaging onto CHIRP Sonar Advanced Signal Processing (ASP) reduces the need to manually adjust settings to see fish, structure and bottom detail more clearly TrackBack™ to review recorded sonar history including structure, transitions or fish targets New page selector menu with quick access to all features using one-thumb operation Multi-Window Display lets you quickly choose from pre-set page layouts Supported by Lowrance Advantage Service program. Transducer sold separately