Summary: I've had these about 8 years now, and they just now broke again. The first failure was the wire lead that connected to two ear piece elements together. I replaced it with a piece of RG-316 coax, as it was the only "two conductor" wire I had that was small enough. Then the 1/8" stereo plug became intermittent, and I had to replace that. Now the plastic pieces that hold the left ear piece into the headband have broken, and I'm not sure how to fix that one.
Summary: The sound is very poor. The headphone adjustment won't stay where you adjust them to. You have to constantly "re-adjust" the headphones each time you put them on. Ear-piece foam very cheap. Original box had to be cut to get phones out. [...] I had a pair years ago - loved them. I think quality changed.