DBTech 175 Watt Portable Micro Power Inverter With USB Port - 12v AC to 110v DC Car Plug Converter For Your Ipod, iPad, iPhone, Tablet, PSP, DVD Players Laptops Netbooks And cellphones
As people have described, it's pretty loud when in use. It works and gets the job done though. If you're not bothered by a little extra noise in the car, this is a good purchase.