This charger offers you a number of different functions: Charge rapidly: Use the cradle in combination with the AC adapter & connect to a wall socket for a fast charge. Charge & visit HOME: Connect the cradle to a USB (Universal Serial Bus) port on your computer & visit TT Home while charging, to retrieve all latest updates & Mapshare corrections Charge on the move: Leave the cradle at home & travel light with just the charging cable & AC adapter with the correct world adapter. Tom Tom GO home dock Tom Tom GO connect cable AC adapter with international adapter plugs