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 and MP3-players through the cigarette lighter of your car, truck or boat! The dual USB car charger works on 12 - 24 volt and converts it to 5 volt. 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!