These headphones are light weight, comfortable on the ears, and significantly reduce ambient noise. Sound quality is excellent and I prefer them to the bud type earpieces.

We've never been big fans of headphones that use active noise cancellation, chiefly because they mask the sound of aircraft engines, HVAC systems, computers, and other sources of ambient noise by generating noise of their own.

Effective active noise cancellation; comfortable fit

Detectable active noise cancellation; EQ needed to compensate for muddy sound

I was looking for a pair of noise cancelling headphones for travel and my office. I was using in ear headphones but after prolonged use, they get quite uncomfortable. I went to the store and tried the Bose noise cancelling headphones and also these Sony noise cancelling headphones.

The first thing you'd probably ask me if you were going to buy these active noise-canceling headphones is whether they're better than the the Bose QuietComfort 15 or Bose QuietComfort 3 models. The short answer is no.

The, are compact noise-canceling headphones with a creative design, deep bass, and adequate noise cancellation; The headphones fold up to fit into a convenient carrying case and can still play music without the noise cancellation engaged

Slight; but audible hiss with noise canceling on; and the headphones lack an integrated microphone for making calls

If you can't afford Bose's QuietComfort noise-canceling headphones, the attractively designed and more affordable Sony MDR-NC200Ds are worth your consideration.

The Sony MDR-NC200Ds are compact noise-canceling headphones with a creative design, deep bass, and adequate noise cancellation; The headphones fold up to fit into a convenient carrying case and can still play music without the noise cancellation engaged

Slight; but audible hiss with noise canceling on; and the headphones lack an integrated microphone for making calls

The Sony NC200Ds ' noise-cancelling does a good job of smoothing out the world's background noise. However, this effect is also apparent in the sound coming out of their drivers; with the tech turned on, everything sounds a bit too gentle and muffled.

The MDR-NC200D looks similar to the QuietComfort 3. They are both supra-aural headphones, meaning they rest on the ear instead of encircling it and sealing it off, as circumaural pairs do.

Highly effective noise cancellation that auto-adjusts to your environment; Comfortable for long-term listening.

Distorts badly on bass-heavy songs when noise cancellation is engaged; Uses triple-A battery despite ample room for a rechargeable compartment

Everything said, we enjoyed our time with Sony's MDR-NC200D noise-cancelling headphones. The fit is excellent, the active sound quality is pleasing, the build quality is solid and most importantly, the automatic noise-cancellation works seamlessly and easily.

Effective noise-cancellation; Ultra comfortable fit; Pleasing active sound quality

Eats batteries; Passive sound quality is so-so; Passive noise-isolation needs improvement

I purchased an older model 3 years ago (MDRXB300) and still use them today. I purchased these headphones for a family member who loves them. I actually bought the Sennheiser Model: HD439 first and exchanged them for these ones.

Bass; Comfort; Headset Jack; Non-Tangle Cord; Color

None I can think of

I bought the headphones because they are cheaper than BOSE noise canelling. They are not as good as BOSE for noise canelling but the sound is good, they are extemely comfortable, and very well made.