Shuffle charger at the apple store being sooo expensive, I decided to try this one out. I can only use it on one computer, as the other one shuts down when I plug this in (crazy! never seen a usb item cause that before). Plugging product into shuffle immediately shows design flaw. The base of the shuffle adapter is not flat, so the shuffle sits crooked and doesn't go in all the way.. However, once I figured out which computer can accept this product, and how to situate the shuffle to effectively charge, it works fine. Wouldn't buy again and don't highly recommend, but too lazy to return for such a small price. At least I'm able to use the ipod again!