The top of the line 787c2 Combo packs Humminbird's exclusive 640 vertical pixel resolution hemispherical viewing color display, DualBeamPLUS sonar and GPS chart plotting with a built in UniMap. Features Full color GPS chart plotting and high performance Fishing System Brilliant color, 640V x 480H ultra high resolution 5' TFT display Hemispherical Viewing screen technology provides a paper like viewing experience regardless of the viewing angle Built in 4 nautical mile resolution UniMapreg of USA inland lakes, rivers and coastal areas Memory card expansion slot to save Screen Snap Shots or optional cartography Precision 16 channel WAAS GPS Receiver included DualBeam PLUS153 sonar delivers wide coverage and better bottom definition Selectable 20176 or 60176 beams, or simultaneous operation Maximum 4000 Watts peak to peak 500 Watts RMS Power Output Reliable performance from shallow to 1500 feet Water temperature and GPS speed included Expandable upgradeable fishing syst