The Matrix 47 reveals the bottom in 3D shaded relief for the most accurate representation of the area under and around the boat. It's key features include: An Ultra high resolution 640V x 320H pixel, 5" FSTN LCD with contrast enhancement technology. Enhanced 3D sonar uses 11 interlaced sonar beams for higher resolution across 53 degrees of the bottom, and offers up to 20 times more history detail, Dual function sonar provides 3D capability to 240 feet and traditional 2D capability to 1000 feet. Maximum 8000 watts Peak to Peak (1000 watts rms) power output. GPS Ready - Get advanced position location and navigation with Optional GPS receiver. Plug and Play compatibility with WeatherSense Barometric Pressure, Smart Cast wireless sonar link and PC connection advanced accessories. Convenient tilt and swivel mount system with one button quick disconnect. Compatible with existing Wide 3D Vision and 3D Paramount Transducers. Many more additional features. For a full list of features, visit Hummingbird's web site. One year limited manufacturer's warranty.