Featuring a tilt-mount base and a 256-color 4.3 screen with a 480x272 resolution, Humminbirds PiranhaMax 4 Sonar makes it easy to explore underwater terrain. DualBeam operates at either 200kHz with a 28 beam or 455kHz with a 16 beam to deliver depth capabilities down to 600 ft. Peak-to-peak power output of 2,400 watts. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Sonars.