Zune Car Pack FM transmitter -Black It includes coiled cord for easy storage and has 1-year warranty. The car charger plugs into vehicle's 12-volt cigarette lighter plug. The FM transmitter wireless broadcasts music through car's stereo speakers. The full vehicle pack designed for Microsoft Zune media player. The AutoSeek function automatically locates unused FM frequency. Full vehicle pack designed for Microsoft Zune media player FM transmitter wireless broadcasts music through car's stereo speakers AutoSeek function automatically locates unused FM frequency Car charger plugs into vehicle's 12-volt cigarette lighter plug Includes coiled cord for easy storage; 1-year warranty