This dual USB car charger is the ideal solution for charging your iPad or tablet and most of your other USB devices like (smart) phones, navigation systems, MP3 players and digital cameras through the cigarette lighter of your car, truck or boat! The dual USB car charger works on 12 - 24 volt and converts them automatically to the 5 volt that USB devices use. You can easily charge your USB devices while travelling by car, truck or boat, without the need of a PC, notebook or wall socket. Thanks to the high output power and 2 USB ports, you can charge 2 USB devices at the same time!