Easy-to-use 7-inch color fishfinder with built-in, high-sensitivity GPS and Garmin CHIRP DownVü™ scanning sonar Find fish; mark and return to hot spots, docks and ramps Includes Garmin GT20 transducer with CHIRP (77/200 kHz); transmit power (300 W RMS)/(2,400 peak-to-peak) with 455/800 kHz CHIRP DownVü (300 W power) Upgrade to high-performance CHIRP with a GT22 or GT23 transducer (each sold separately) Share waypoints and routes with other STRIKER or echoMAP™ chartplotter combos Finding fish is easier than ever with STRIKER 7dv fishfinder. Mark and return to your hot spots, boat ramps and docks. You also can share your favorite waypoints and routes with other STRIKER and echoMAP combos. It has a built-in flasher and displays speed data. Includes tilt/swivel mount plus transom and trolling motor mounting hardware and cable.