I have used mine *heavily* since I bought them in March 2005. The fact that it has an extension cord is great: you can use the short cables to attach to your iPod in your armband without a mess. This works great for the treadmill.9 Months have passed and the left headphone is not woking very well. Just checked and it would cost me $30 to get a replacement. I guess its a bad assumtion to make that all prodcuts come with a one year warranty huh?The headphone plugs do come lose easily, so you have to watch over them when taking them out of a bag or untangling them. Sound is great, but I am dissapointed that they lasted only for 9 months.