FeaturesFull color GPS chartplotting 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 UniMap 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 PLUS sonar delivers wide coverage and better bottom definition Selectable 20 or 60 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 System Tilt & swivel quick disconnect mount system or optional in-dash mount Optional Navionics Gold and HotMaps cartography Optional 90 QuadraBeam or WideSide bank scanning transducers