Garmin nuvi 3790T 4.3-inch Portable GPS Navigator: * 4.3" diagonal multi-touch screen: Find your destination easily with the full-color display * Dual orientation capability: Use the unit either horizontally or vertically * trafficTrends: Automatically learns daytime trends for traffic flow to improve your routes and better predict your estimated time of arrival * myTrends: When you save your regular destinations in your Favorites, you nuvi 3790T will, over time, begin to figure out where you"re going and automatically provide time of arrival and relevant traffic info * Innovative speech recognition: Keep both hands on the wheel by giving spoken commands to your GPS unit * Lane Assist with Junction View: Guides you to the correct lane for an approaching turn or exit * Bluetooth wireless technology: Pair this unit with your compatible Bluetooth phone and talk hands-free * Subscription-free traffic alerts: Steer clear of traffic with the built-in FM traffic receiver and free lifetime traffic updates * cityXplorer: Find out where to catch the bus, subway or tram in the big city with this optional downloadable feature * Preloaded with City Navigator NT street maps for US, Canada and Mexico: With nearly 6 million points of interest and speed limits for most major roads * 3D Building and Terrain View: See representations of prominent buildings in many cities and map contours at low zoom levels * ecoRoute: Helps you calculate a more fuel-efficient route * Where Am I? emergency locator: Simply tap the screen to get your exact latitude and longitude coordinates, the nearest address and intersection, and the closest hospitals, police stations and fuel stations * Garmin Lock: Disables the unit from performing any functions until a specific 4-digit PIN is typed in or the unit is taken to a predetermined location * Garmin Garage: Download custom voices and vehicles for your unit * Rechargeable lithium-ion battery: Up to 4 hours battery life