"Incorporating the stylish features and functionality of the popular HELIX series, the Humminbird PiranhaMAX 4 Fishfinder comes at you with a 4.3"" screen, tilt-mount base, and a Dual Beam depth capability of a whopping 600'. You won't find power like that in ordinary fishfinders. Its 256-color screen with 480x272 resolution gives crisp presentations, and the 320' Down Imaging adds picturesque displays of your next catch. 2,400W PTP power output. Dual frequency. If you're looking for the best fishfinder for the money, the Humminbird PiranhaMAX 4 Fishfinder fits the bill with savings to spare.Manufacturer model #: 410150-1. 4.3"" screen 20% larger screen size than past versions (4.3"" vs. 3.5"") 256-color screen Crisp 480x272 resolution 320' Down Imaging 600' Dual Beam 2,400W PTP power output Dual frequency Convenient tilt-mount base"