WARNING HEAD-FIERS! Do not purchase Ultrasone's Go headphones! I received a pair from them and they started falling apart. So I had them send me a replacement pair and the same thing started happening, so I just threw them where they belonged - in the trash. I'm not trashing Ultrasone as a company, just these specific headphones. From what I've heard here on this website (I haven't had the money or fortune to try any other Ultrasone headphones), Ultrasone's more expensive headphones are a lot nicer. However, these are simply not on the same level as those.