The Garmin nuvi 2450 5.0" GPS Unit nuvi features a large 5.0" screen and speaks street names with the voice prompt facility that makes traveling easy. The widescreen gives clear and precise information to the user making it easy drive through unfamiliar streets. To make daily driving easier it nuvi features a multi-point route planner that automatically sorts multiple destinations into an efficient route. The Garmin ultra thin GPS comes with the lane assist feature with junction view, trafficTrends historical traffic, myTrends predictive routing, and maps for the U. S. , Canada and Mexico. The trafficTrends feature calculates the routes based on the predicted traffic flow while the myTrends facility of the lane assist GPS predicates routes based on the navigation behavior of the user. The auto reroute facility of the voice prompt GPS gives you fast off-route and detour recalculations. The GPS works with a rechargeable lithium ion with up to 3 hours of battery life.