I have owned several sets of these. I am amazed by the sound quality at this price.
Pros: Inexpensive. One of the best sounding sub-100 dollar headphones. Super-lightweight. Wide sound-stage.
Cons: Looks odd with my shaved head (:-) lol. Cheap, thin wires can be fragile without extreme care. Ear clips are not as comfortable/convenient as they could be.
Note: If you start getting a buzzing or distorted sound, look for a hair or dirt contacting the speaker. A cleaning saved a pair of these I thought had gone bad.