iWAY 600C RV DISPLAYDisplay Size 5 in \ 127 mm Display Resolution 640 x 480 (H x W) Display Type 16-bit color TFT touch-screen Backlighting Screen/Keypad Backlighting Type Cold cathode screen and Blue LED keypad GPS Overlay Data Yes Multilanguage Display Yes GPS / NAVIGATIONGPS Antenna Type Internal GPS+WAAS GPS Receiver Channels 12 channels Background Map NAVTEQ turn-by-turn database, MapCreate inland shoreline, and NauticPath coastal charts Custom Mapping Built-in, detailed and highly accurate NAVTEQ® turn-by-turn database for the continental U.S. and Canada; MapCreate™ shoreline detail with over 3,000 Enhanced U.S. Lake Maps with depth contours for inland waters; High Detail NauticPath™ charts for the Great Lakes and Costal U.S. waters with depth contours, navaids, port servies, tide/current data , and more. TECHNICAL / ENVIRONMENTALBuilt-in Backup Memory Yes Width 6.1 in \ 155 mm Height 4.5 in \ 114 mm Depth 2.1 in \ 54.6 mm OTHEROther Features Satellite imagery of many metropolitan cities with streets overlay, MP3 audio player, FM modulator, JPEG picture viewer, and 30GB internal hard drive with 5GB reserved for personal audio and picture files (20GB available for personal files for Western Europe models).