Humminbird's 586c has incredible sonar capabilities with a 5" FSTN color display to make your fishing adventure a realistic and fun pursuit. You don't have to be a sonar expert either, thanks to the user-friendly X-Press Menu System for easy system navigation and command-and-control selections. Experience ultrahigh-contrast, high-definition displays with up to 640 pixels. You'll get precise temperature readings with the 586c. Humminbird's Dual Beam sonar combines the advantages of narrow- and wide-beam transducers into one system. Its precision 20° at -10db 200kHz down-looking center beam scans for fish and structure directly below the boat, while the broad 60° at -10db 83kHz wide beam searches for fish outside the narrow beam around the boat. The Fish Identification feature gives more information on location than a traditional single beam: Fish in the narrow beam are displayed as solid fish symbols; fish in the wide beam are shown as hollow fish symbols. High-sensitivity Sonar Echo Enhancement. Accelerated Real-Time Sonar™. One-Touch™ 2X, 4X, 6X or 8X split-screen zoom. Fish ID+ with Target Depth or View Sonar Returns. Tilt and swivel quick-disconnect mounting system. Ultrahigh-resolution 320V x 240H FSTN display. 2,400 watts peak-to-peak power output down to 800 ft. depth. As a bonus, buy this system before Dec. 31, 2009 and receive a free tackle bag.