StreetPilot i5 is the newest member of the i-series StreetPilots a line of small, inexpensive automotive GPS navigators that make driving fun. No larger than a baseball and priced affordably, the i5 provides many of the same powerful capabilities as Garmin"s other premium automotive GPS navigators. It features a convenient click-to-enter scroll wheel and a back button which makes it easy to select a destination from the unit"s menu-driven interface. The i5 includes 3-D map graphics, and provides voice-prompted, turn-by-turn directions through a built-in speaker, and will automatically put drivers back on course if they miss a turn. StreetPilot i5 comes preloaded with detailed maps of City Navigator North America NT, which features full coverage of the entire United States, Canada, and Puerto Rico including nearly six million points-of-interest.You can also import customized points-of-interest with Garmin"s free POI Loader software. Upload safety cameras or school zones, and you will receive a warning if you are traveling too fast. Drivers can power the unit with either two AA batteries (six hours, typical use) or the included 12-volt adapter cable,and it comes with removable Micro SD data storage as well. Includes removable 12-volt power adapter cable for external power while in your vehicle Includes a vehicle suction cup mount which allows for easy adjustment and quick release Built-in Flash memory for storing preloaded map data / USB Interface Dimensions (WxHxD) - 3.00 x 2.74 x 2.15