Logitech Ultimate Ears 200 985-000135 Grey Noise-isolating Earphones

Pros: Nice build quality.
The cord seems to be rubbery-plasticy

Cons: See other thoughts.

Other Thoughts: The bass on these earbuds are not deep(imo there is no bass whatsoever)
When you try add bass with equalizer, or the bassbooster thing on my phone, these sound terrible and distorted.
The sound however is clear/clean, so it's good for hearing vocals/lectures.

Even on sale at $10 there are better options out there.

Pros: Crystal clear audio and clean bass, and an isolation I have never found with other sets. Multiple sizes makes it great for everyone. Comes with a convenient carrying pouch, so it won't tangle with other things in your pockets.

Cons: The rubber earpiece came out a lot, but I just ended up gluing it onto the earpiece. The cable likes to "remember" it's shapes, so it was always kind of coiled up, and it can't bend into sharp shapes.

Other Thoughts: It doesn't have a circulation hole in the housing, so if you put them too far into your ear they tend to start sounding distorted, but it was a good thing to cut for the isolation. I eventually ended up using the carrying pouch for other small things I put in my pockets, such as screws.

Pros: Noise isolation is very good, and the sound quality is pretty good.

Cons: The right-ear driver went out in mine after about 1 month of use. I never abused these headphones, in fact I kind of babied them because they were still very new to me. Most of the logitech products I have owned have been very high quality, so I was very surprised with the lack of quality in these headphones.

Other Thoughts: Fortunately I got them on sale for ten bucks, so it wasn't a huge loss. I would suggest that you wait for a pair of Sennheiser or Klipsch to go on sale. I recently purchased a pair of Sennheiser CX150's for around fifteen dollars. The noised isolation isn't quite as good as these, but the sound quality is noticeably better, especially in the upper and lower frequencies(mids are about the same).