This unit features state-of-the-art digital signal processing for better performance and a more detailed image of the environment under your boat. Si-Tex's superior Digital Filtering Technology virtually eliminates unwanted noise for enhanced fish targets in shallow and deep depths. This makes it easy to differentiate between baitfish, larger fish, schools of fish, and the bottom of the ocean. It also provides a more detailed image of reef formations and the contour of the sea floor. Exclusive Sona-Tone identifies what's under your boat with different sounds for fish and schools of fish on a built-in speaker. This allows you to be away from the display and still have awareness of what's lurking beneath you. Brilliant 5.7" color LCD is easy to read in sunlight. 600 watts of power with 8 depth ranges from 0 - 2,800'. Auto fishing and cruising modes. High-speed pulse rate transmission of 5,000 times per minute for enhanced shallow water detection. IPX5 waterproof rating. Interference rejection, color rejection, depth marker, event memory, panel illumination, draft adjustment, temperature correct, boat speed correct, and waypoint navigation. Consumes 20% less power than conventional sounders. 7.2"W x 7.2"H x 4.1"D. Two-year warranty.