I really wanted to like this product. I liked the look of them, as far as earbuds go they are relatively comfortable, and the stay put nicely in the ear. The sound is pretty nice. But for something marketed as "rugged" they are entirely too fragile. Within 3 months, and with fairly gentle use, the headphone cord separated from the headphone jack. I tried to contact Sennheiser about the warranty but recieved no response. I was disappointed, but I gave the product another try - mainly because the fit was nice. I bought another pair. Today, after about 6 months use, I noticed that the green coating of the cord is splitting near one of the earbuds, revealing the wires underneath. I am really surprised that these haven't held up well, I have not used them in any kind of rough way and stow them in the little pouch they provide. so disappointing.