The Garmin 010-01550-00 STRIKER 4 FishFinder makes finding fish easier than ever, allowing you to mark and return to your hotspots, docks, and boat ramps, and share your favorite routes and waypoints with other STRIKER and echoMAP combos. Smooth Scaling graphics allow for uninterrupted imagery when switching between depth-range scales. The sonar history rewind feature allows you to scroll back through sonar images and mark waypoints you may have missed originally. The unit also has a built-in flasher and displays speed data. Includes tilt/swivel mount, CHIRP (77/200 kHz) transducer with transom and trolling motor mounting hardware and cable. Garmin 010-01550-00 STRIKER 4 FishFinder Features: Easy-to-use 3.5-inch color fishfinder with built-in, high-sensitivity GPSFind fish; mark and return to hot spots, docks and rampsConvenient keypad operationIncludes CHIRP (77/200 kHz) sonar transducer; transmit power (200 W RMS)/(1,600 W peak-to-peak)Upgrade to high performance CHIRP with a GT8 or GT15 transducer (each sold separately)More Features and Specifications