Garmin StreetPilot 7500 Portable GPS Navigator Uses integrated XM radio receiver to deliver real-time traffic information, weather, and entertainment Massive, automotive-grade touch-screen display automatically dims and brightens based on ambient light conditions Built-in MP3 player, A/V input allows connection to a DVD player Text-to-speech technology speaks the names of streets and tells you when to turn and in what direction. Dead reckoning technology maintains accuracy. Includes MapSource City Navigator NT North America maps of the entire United States, Canada, and Puerto Rico