Navigon 7100 4.3-Inch Portable GPS Navigator Precise turn-by-turn directions, including spoken road names via text-to-speech Lane assistant recommends the best lane for you to be in relative to the proposed route Photo-realistic 3D images of junctions, complete with actual sign text and exit ramp guidance Free real-time traffic information via the integrated traffic receiver High-contrast, wide-format 4.3-inch, full-color touch-screen display; unit measures 5.1 x 3.5 x 0.9 inches (W x H x D)