Cobra MC 600 Ci 6-Inch Waterproof Marine GPS and Chartplotter GPS marine chartplotter navigation system features an internal antenna and tilt-swivel mounting bracket Preloaded with detailed base map that includes major rivers, lakes and roads worldwide Compatible with C-Map's NT Max C-Cards and Cobra's black box fishfinder Six-inch color TFT display with anti-reflective coating Measures 6.25 x 7.75 x 3.25 inches (WxHxD)