Garmin StreetPilot i5 1.7-Inch Portable GPS Navigator Small, inexpensive but robust automotive GPS navigator Unique and convenient click-to-enter scroll wheel makes it easy to select destinations Three-dimensional map graphics with voice-prompted, turn-by-turn directions through a built-in speaker Automatically puts you back on course when you make a wrong turn or run into traffic problems Measures 3 x 2.74 x 2.15 inches (W x H x D)