Summary: The sound is great and the mic come through clear, however the ear peices were not made for extended use and i would not suggest buying this if you plan on wearing it for more then an hour or two.
Summary: I may have gotten unlucky with this headset. A defected headset could come from the factory of any modern day product, cheap or expensive. Although my first try on these makes me not want to get another pair. A two week life is pretty bad.
Pros: The sound quality of the mic was fine, and the sound quality of the speakers were fine for gaming.
Cons: The microphone seems like it would one day break off with how it is attached. The left speaker died after 2 weeks.
Pros: Low price, lightweight so it's easy to throw into the trash
Cons: These SUCK. They are listed as Circumaural -- LIE. They do NOT have some necessary gaming features -- no clip to attach to shirt, no mute, no volume control on cable (or on individual ears for that matter), their upper range is VERY low volume and the bass resolution is sorely lacking. Finally, when, after owning them for LESS than a month, and the jack started stripping, I was told, TOO BAD. NEVER buying Koss again.
Pros: Was a solid headset while it worked, good mic and audio quality
Cons: None originally, apart from discomfort after prolonged use. Two months after buying however the mic died. Was working fine, unpligged the mic and plugged it back in again 10 minutes later and it didn't work