Instruction: Answer the given question using the supporting document.

Input:
Question: How well do the noise cancellation work?
Document: Also, the headphones provided great noise cancellation and easy remote access. The sound was good enough for my needs although I did prefer the Bose headphones.One day, I get to work and boom....there is a short in my headphone wire. How did this happen since I only listen to this headphones at my office job where I sit in front of a desk all day?!!! I don't know.
It's not sealed. I can still hear noise outside, including my typing. Just better than cheap earbuds.I don't see any effect of the noise cancellation effect.It's reasonably comfortable to wear for a couple of hours. Longer than that, my ears start to hurt a bit.Mic works well.
These work great. I got them for the plane, to wear with my iPad Mini and iphone. They work well also when cutting grass for some noise reduction. The iPhone functions on wire are awesome.
The inline mic seems to work well and the sound is good. if you have a loud cubicle neighbor they don't quite drown the sound out though. they aren't marketed as "noise cancelling" so i can't hold it against them... just an observation.
Sound quality is fantastic, and they are comfortable and compact. However, do not buy these if you plan to use them on an airplane. Without noise canceling, they really do not work well on a noisy plane. I wish I had bought the new noise canceling Klipsch.
While those work well, two issues always happen. First, I have to keep a constant stream of batteries going. Second, there is the occasional buzzing during music play. Since these headphones require no battery, there is also no buzzing. As for noise isolation, I have found that the quality - particularly with music - is quite excellent. I do not hear any white noise at all, and I can barely hear other noise when using these headphones.
Within one hour of the first use the rubber ear cover came off and was impossible to put back on. They're going back to the store for a refund immediately. I spent about $150 for them and it's simply not worth that much for headphones with zero noise cancellation or reduction - on the airplane for the hour that I was able to use them the jet roar was horrible. Avoid.
The noise isolation is pretty good but not even close to the Bose noise cancellation. If you goal is to block out noise without listening to anything these won't do it. They do isolate the noise of a loud office while listening to music or podcast at lower volumes. I think they are a perfect office, school, commuting headphone and I could only see myself getting an actual noise canceling headset for flights where I really want a noise free environment.
I have been wearing the headphones for around  3 hours a feel very comfortable and the noise-isolation is good could be better, but again this is passive noise isolation, it would be great if they had this headphones with active noise canceling. The ipod/iphone controls are a plus and work great too. Hope this was helpful....
[...]is a link to a webpage which has a video on how to put the pads on the earphones back on. Just took me a few minutes. My husband loves these headphones -- he uses them on the train to/from work with his iphone/ipad and he's missed having them. He's participated on conference calls from work on his way to/from the office and he doesn't get the same sound quality or noise reduction with earbuds.
Answer: I see the confusion.  The blurb says "noise-isolating,"  but also clearly says "unlike noise-cancelling..."  These are not noise-cancelling headphones.  Some of the reviewers mention it as if they are, but I think they are confusing "isolating" and "cancelling."  It's a good idea to understand the difference.