Magellan Roadmate 3055-MU 4.7 Inch Vehicle Navigator Includes 1 Free Map Update During The Life Of The GPS Navigator Hands-free Calling & Noise-cancelling Microphone For Superior Sound Quality With Advanced Bluetooth Technology OneTouch Favorites Menu Offers Instant Access To Personalized Bookmarks Of Favorite Places & Searches Free Lifetime Traffic Provides Real-Time Traffic Information To Avoid Traffic Jams, Detours & Construction Zones Highway Lane Assist Shows Realistic Highway Signs To Guide User & Ensure That They Choose The Correct Lane Advanced Bluetooth technology Extra large 4.7 inch touch screen One Free Map Update for life of navigation system OneTouch Favorites Menu Free Lifetime Traffic provides real time traffic information