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8.0
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Criteria Comments Rating
  • Sound quality Hands down, the best sounding $30 headphones I have heard great!
  • Design and form factor They fold up which is nice, but still are a bit clunky. Cable tangles easy good
  • Comfort Generally it is good, with 3 adjustable levels of comfort. However long listening sessions tire my ears out so-so
  • Noise isolation They are open dynamic headphones. Not designed to keep sound in or out poor
  • Durability I usually break headphones within a year. This has been going strong for over 1.5 great!
Detailed review
I am in love with these headphones. After a year and a half, I maintain these are the best sounding and most durable headphones that $30 can buy. The sound that comes out of them surpasses any traditional earbuds, or cheap headphones.

I will not compare them to in-ear headphones as I do not like how those feel (personal preference)

They are relatively comfortable. The metal band adjusts to size and there is a selector for 3 levels of comfort (light, medium, firm). Once in a while a hair may get caught in the band and yet yanked out, but I have thousands of hairs so I don't need to worry.

They are open backed headphones, and maybe I listen to my music quiet enough, but I don't think sound leakage is a problem for me. Obviously if you like to crank your music then it will get much worse. I like how I can hear what is going on around me as I use these on the go and at the office. If you are looking for noise isolation, look elsewhere.

Traditionally all my headphones get a break in the line near the plug early in their life, yet these have not (and there have been some scary times too)

Koss offers a lifetime warranty as well. If you break them, ship them back and you will get a replacement pair.