Garmin STRIKER™ 4 FishFinder w/4-Pin, 77/200kHz TM TransducerExperience the Garmin STRIKER 4 FishFinder with 4 Pin, 77 200kHz TM Transducer a compact, easy to use sonar and GPS combo that helps you locate fish fast and navigate with confidence on any lake or coast. Crystal clear CHIRP sonar for crisper targets STRIKER 4 uses Garmin CHIRP sonar to deliver a visibly higher level of clarity and detail for fish and structure than traditional transducers. By transmitting a sweep of frequencies from low to high,