The Plantronics in car charger allows the quick and easy charging of popular Plantronics Bluetooth headsets, such as, the Discovery 640 and 610, the Explorer 320 and the Voyager 510 and 520. Convenient for headset users that are constantly on the move, the in car charger simply plugs directly into the car’s cigarette lighter, making sure your headset is always fully charged and ready use, wherever you are.