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
when i bought this product with the price that it had on it, I didn't think it was going to be worth my money. When i got it I put it right to the test with a cross country trip. I was in the car for over 100hr in a few weeks. I always had my laptop (MacBook Pro 13\\") Plugged in charging. After a little bit you could start to hear the fan that was in it. But if you have music on even at a low level you cant even hear it. Best product i have ever used for charging my laptop in the car.