GPS Navigation For Dummies FD-250 3.5-inch Portable GPS Navigator 3.5-inch color touch display GPS system with high-sensitivity GPS receiver for quick location fix Digital map with browsing capability, 2-D and 3-D map perspective Turn-by-turn visual guidance and voice directions speaking street names The familiar, easy-to-use For Dummies style, complete with icons, leads you through the GPS navigation software user interface and user's manual Entertainment features including digital music player, picture viewer and more