Using the latest development in WAAS GPS 12- channel technology and C-Map's award winning MAX cartography, coupled with a powerful 200KHz microprocessor, the new Chart Masters provide fast and accurate position fixes as well as a wealth of detailed chart information and lightning-fast zooms on their large screens. The 10.4-inch active matrix 256 color LCD display (VGA resolution) of the Chart Master 11CV+ is daylight viewable and ideal for use in enclosed cockpits or on open boats with hardtops or enclosures.