STRIKER 4 fishfinder with portable carrying case is perfect for fishing from a kayak or canoe and is especially handy for ice fishing. 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 chartplotter combos. Smooth Scaling graphics provide uninterrupted imagery when switching between depth-range scales. Sonar history rewind allows you to scroll back through sonar images to mark waypoints you originally may have missed. Includes carrying case, rechargeable battery, CHIRP (77/200 kHz) transducer and a tilt/swivel mount. For high-performance CHIRP, purchase a GT8 or GT15 transducer (each sold separately).