This pair of headphones that I have are good. And I say good for only one reason- the build quality. The build quality of this pair of headphones I have has not held up the best. But for just under 30 US dollars, these headphones are EXCELLENT! The sound quality is like none other for the price, and when you switch on the headphones, (which do work without switching them on) the quality has substantially improved and comes a punchy (but not too punchy) bass, good clear mid-tones, and crisp high tones. On the flip side, the noise-canceling is ok, not great, but when you turn up the volume, then you can start to tell there IS noise canceling. The headphones are SUPER light thanks to the all-cheap-plastic design, and the ear cups aren't bad, and I can wear these while doing homework, or filling out work stuff. I have owned these for 4 years now, and have gotten their use out of them. The battery cover has broken, and the battery is being held in by a piece of tape. There are over a billion scratches and one of the joints in the cheap-plastic band is broken. But surprisingly, these have been knocked around, and are still in working condition. Am I going to buy another pair? Probably. No, yes. Yes, I am.

Great sound (as long as they're powered on) I thought the on/off feature would only affect the noise cancellation on these headphones. Apparently, I had no idea how that was going to work if you try to use them without power. In the powered off state, they still work and play sound, but you lose almost all the definition in the bass and higher frequency sounds. This leaves you with just a muddy sounding mid-range which is not what you would expect from a Sony product. Turn them on however, and you are blessed with the most beautiful sounding clarity across the board in all frequencies at high and low volume levels. The noise cancellation is also not exactly what I expected, but does work exactly as described on the package. It reduces the background noise mainly on lower frequencies making it ideal to quiet outside engine noises from vehicles and airplanes. They even include an adapter for you to use them with many airlines in-flight entertainment systems.

I bought this About 18 months ago and still works fine. Good value for money.

the sounds with the noice cancelling is wierd, but can be fixed with equilizer. I found this headphone cheaper than the non noice cancelling version. The headphone it self made out of plastic and the earpad easily peel (you can change the earpad with mdr zx110ap and it won't have the problem)

i bought these around 1yr ago and they still word great! But the side of the headphone did break and now you can see the battery but still works great!

You have to switch on the noise canceling feature to get the most out of these headphones which requires a AAA battery. It is included. I liked them much better with that feature but I can’t understand why it needs a battery and a switch - would prefer that sound quality as The standard quality of the headphones without the aid of a battery. I guess that’s modern technology. I can’t understand why someone would not want the enhanced sound unless they really don’t like bass. Not sure what’s the point in listening to muisc without bass. Other than that very clear sound.

works well but it’s not really sound canceling

Had these before. Works perfectly on planes. Only issue is, after a few years, the material that touches your ears begin to break/flake/rub off.

Bought for a flight and it did a decent job of drowning out plane noise as long as I was listening to something else. On their own they don't block out much noise, you need to play something to facilitate that.

I have had these for about FIVE YEARS with no problem. They fold up in my carry-on backpack and have survived countless flights. The only reason I am looking for new ones is because the covering over the padding is starting to peel alway. But that is to be expected after so many uses on flights. While they are noise reducing, the are not noise-canceling. After a cross country flight, they do get heavy on my ears. Overall, they are good quality for the price. Don’t expect the performance you would get from a $300 set of headphones. But do expect a good quality that will last a while.