Rating: 
Summary: Won't hold for long
Review: For the while I had these guys, they did me well, pretty good sound quality. I'll just summarize pro's and cons:Pro-
-Descent sound quality
- relatively [inexpensive] Con-
-Will fall apart if you're semi active, or will fall apart on its own in a half a year.
- Open ear, so if you play your music loud, you're going to get a lot of complaints.
- Not the best sound quality If you don't have a high budget, then these will do for a while.
But if your looking for better sound quality, look at some sennhieser headphones ( px100's)
Rating:
Summary: Broke them in less than a month.
Review: I needed headphones I could take to the gym, but after having Sony Street Style headphones w/ volume control for a long time, I really wanted headphones with volume control. Well, the loss of sound quality was just barely noticeable in the Koss headphones, they were half the price, and they do have volume control. However, they hurt the backs of your ears after a while, and whatever you do, don't wear them at the gym. I was using a stationary bike, got a little sweat in them, and the left ear stopped working. Oh well...back to Sony for me.
Rating: 
Summary: Music in combat
Review: I Purchased these headphones before i left for Kuwait then Iraq,
i was looking for somthing small portable and disposable in case they got lost or blown up. for being stuffed in a medical bag being bounced around and thrown about i can say its a very durable dependable pair of headphones, I was not expecting much for sound but i was suprised on how well these headphones delivered, before the war, we had tons of down time and listened to music on a cd player, to me they have a good bass response, and clean highs with little distortion.
they survived the war beat to hell but still working and sounding as good as the first time I put them on, if you are looking for a dependable good sounding pair of headphones with out spending too much money these headphones might serve you well, they have survived in combat and will survive any domestic abuse.
Rating:
Summary: great value and sound
Review: These simple, light phones have always been the highest rated in their class. Good: surprising bass response and suitable for active lifestyles. Bad: maybe a little dorky looking and may leak too much sound for cubicle or public transport use.
Rating: 
Summary: good sound. not very comfortable.
Review: The sound quality is good, especially in this price range. I however find it quite uncomfortable to wear. When I wear it for more than half an hour my ears really hurt. It could be different for other people though.
Rating:
Summary: Good Value
Review: I just received them today. Here are some pros and cons: Pros:
1. Good sound quality. Decent bass.
2. Low noise.
3. Fairly comfortable. The clips goes behind the ears like the legs of a pair of glasses. So, if you are used to wearing glasses, you will probably find the clips pretty non-intrusive. Since the headphones are fairly light, you will probably not notice them much.
4. Decent fit. They will probably stay on if you were to bike or walk with them. You may be disappointed if you were to expect much more. Cons:
1. Cheaply constructed. They are made of plastic, not metal. I think they will stand up to normal use. I doubt if they will withstand any kind of punishment. Overall, I am happy with this purchase. I believe that they will serve me well until the first time I accidentally sit on them.
Rating: 
Summary: Crystal Clear
Review: I bought these head phones for my portable dvd player and the sound was crystal clear, the great design lets for comfortable listening
Rating:
Summary: Great sound, but not the most comfortable headphones.
Review: These headphones sound terrific, and for the price, can't be beat. I just wish they were a little more comfortable. At least on my ears, they tend to pinch a bit and feel a little uncomfortable. My 12 yr old thinks they are "really cool". No denying, they sound great. I did alot of research, even on sites devoted solely to headphone technology and product reviews. I bought them on the basis of glowing reviews from the experts. I think if Koss modified the design with some padding on the earclips, they'd be perfect.
Rating: 
Summary: They trick me.
Review: I bought this stereo long times ago, i have paid for that but until now I didn't receive it. When I sent them an email to ask my order, they just told me to wait. I think it's atrick. Don't believe or buy anything from them.
Rating:
Summary: Nice but the PX 100s are better.
Review: Recommend all look at Sennheiser PX100s. Five Stars for them.
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