Instruction: Given a question and the related document, and generate the answer to the question based on the information provided in the document.

Input:
Question: Are they very durable?
Document: I am rating these while listening to music on them. They're great quality, and very durable. I am generally very destructive to headphones but these have held up sounding the same as the day I got them. Also, they look good. For all of this the price very fair.
The cord is very durable as well and never gets tangled which is an added benefit. The last thing I will mention is these are very comfortable. When I have worn other headphones of a similar style I have noticed that they become uncomfortable after a few minutes of wearing them. Not the case with these, they feel great the entire time. For the quality and the cost you cannot go wrong with this purchase.
I have no complaints about the sound quality, but these headphones are too big and bulky for my taste. They look dumb on my tiny head. I miss my Sennheiser PX-200s but they jacked up the price and those only lasted as long as the flimsy volume knob held up (6 mos-1 year). If there is another set of durable, on-ear, collapsible headphones with decent sound quality UNDER $100, I would like to hear about them please!
those days i wanted to just get away from the world around me and mentally dissapear? they became my soundtuary. so i recommend these to anyone who desires sound quality over boomy bass. but if you do want boomy bass, a lot of people said the zx100's my friend had were better in that arena (but i didnt care because mine were awesome.lol)but that's my review :) let me know if this was helpful
they were big for no reason. comfortable maybe, but there was SO much sound coming through, it literally sounded like i cupped my own hands over my ears.not only that but when i tried to give it the benefit of the doubt and put it through the demo all i heard was loud treble and air. so i moved on. next 2 i didnt even bother to sample, although the isolation was slightly better they still weren't impressive.
they seemed quite comfortable and despite having dual entry wires the wires are encased in a thick rubberized casing that integrates into a thick O-ring around the ear pieces. It is a very nice design for a product that does not have a replaceable wire.After several months with these headphones, I can tell you that they are not a comfortable as I had hoped. The headband is nearly unpadded and the dense ear pads that sit on your ears tend to cause discomfort after 30- 60 minutes.
these things sound amazing. I've demoed the beats at best buy and id say these are just as good for a lot less money. deep bass yet crystal clear highs. best headphones I've ever purchased.
these are very good and Im happy that I didnt over think/spend on another pair. Sometimes I wear these in the office (at my desk) without playing any music but just to block out others talking. I am pretty sensitive to sound and I found these to have wonderful sound quality. Also, I have other headphones that when the cord rubs against my clothes (like a coller) that sound would travel up through the cord and would almost over power what I was listening to.
these are as good as headphones 3x the price. I have 3 now. great sound. great cord. comfy. two words.
the treble and the mids are pretty good,but the bass is weak,and sounds worse than other headphones i'v bought for $20-$30 dollars
Answer: Out of both my pairs, I've never had a problem with them, but I wouldn't just go throwing them around or sitting on them. I've taken them places in backpacks before though and stuff like that and never had a pair break.