Garmin GTM 20 With Lifetime Traffic

   Features
      -Power your nüvi and get lifetime¹ traffic updates all with one cable
      -GTM 20 provides North America traffic information to compatible Garmin GPS navigators
      -Device alerts you to local traffic tie-ups and displays current traffic levels
      -Receiver also acts as an in-vehicle power charger
      -Traffic provided by NAVTEQ Traffic
      -Compatible with aera®550, aera®560, nüvi®5000, nüvi®650, nüvi®660, nüvi®670, nüvi®680, nüvi®750,
      -nüvi®755T, nüvi®760, nüvi®765T, nüvi®770, nüvi®775T, nüvi®780, nüvi®785T, nüvi®850, nüvi®855,
      -nüvi®880, nüvi®885T, SafeNav™ Powered by Garmin™ Street Pilot®c580, zumo®660 and zumo®665