The Striker 4 is an easy to use 3.5" CHIRP colour Fishfinder with built-in, high sensitivity GPS. Mark and return to your hot spots, slipways and docks, and share your favourite waypoints and routes with other STRIKER and echoMAP 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. Plus, it 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.