Tangled-up earbuds are a common problem. Zipbuds aren't the first to try and make tangle-free earbuds, remember the CordCruncher or the a-JAYS Four? The main difference with the Zipbuds Tangle-Free Earphones is the zippered approach. Most of the earphones cord is embedded into a zipper. Clever and pretty cool.
The cables are made of military grade Aramid for strength, this cabling runs up the "vertebrae" of the zipper. While I can't speak to the sound quality, haven't actually plugged them in yet, they look great and don't tangle. A cheesy promo video after the break.