Amazing for the money, it sounds great and it isolates a lot of noise. I can wear these for hours and I can't hear a single person even if they are sitting near me. Very comfortable, the big silicon tips fit me, even when sleeping or moving around. My main gripe is that the cable makes a decent amount of noise when moving it or running my fingers on it. Annoying but not a deal breaker.

I received these as a gift several years ago and enjoy using them. They are very comfortable to wear for extended periods of time and sound great. They cost a bit more than a cheap pair at Walmart, but they are well worth whatever you pay for them.

Honestly, I can`t quite recollect whether I bought this set in 2010 or 2011, I remember it was Winter February, should search for a check from the store. Anyway 6.5 or 7.5 years of daily use for a headphone set? And it still plays notes from 20 up till 19900 Hz (I can`t hear 20khz on any phones) not telling about music. I wonder whether I`ll already have my kids when IE4 dies as I`m starting to think that these headphones are immortal. Though I thinking of updating to IE800 or what`s comming after IE800 anyway. Still I will keep IE4 with me just to find out when it will finally dies.