This is the third set I've purchased, for various computers, phones, etc

Great sound, lightweight, comfortable, and I enjoy the ease of having the volume on the wire

But keeping that in mind and being extra careful, they haven't failed me yet

It's well worth the money, and I guarantee you it's better than any $20 headphone you'll find in a store

Can;t beat the price! Best for price! Very good old Koss phones

Unfortunately they were always plagued with a failure of the in-line volume control; you could guarantee eventually you'd lose either the left or right channel