Navman iCN 550 3.5-Inch Portable GPS Navigator Features turn-by-turn guidance, back-on-track rerouting and a 3D mapping perspective Touch screen-enabled 3.5-inch landscape LCD with 320 x 240 resolution 12-channel GPS receiver is driven by Navman's SmartST 2005 software software must be downable Massive POI database and North American maps stored on 4GB hard drive Includes remote control unit