Fishing blind is a thing of the past when you have a Humminbird PiranhaMAXTM 4 Sonar Fish Finder. Compact yet powerful, it incorporates many of the stylish features, functionality and quality of other Humminbird models but is priced for the budget-conscious fisherman. The easy operation and readouts make getting started with a fishfinder a less daunting task. Get a detailed view of what's going on below your boat from the high-frequency sound waves of the Down Imaging Sonar. The DualBeam Sonar uses 200/455 kHz frequencies over narrow and wide beams to indicate where the fish are at down to depths of 600' while the X-Press menu functions let you choose options for on-screen views.