Sony MDR-NC200D Digital Noise-Canceling Headphones are some of the best mid level headphones that I've had the opportunity to try out. They comfortable, well designed, have a great sound, and do a good job of attenuating the ambient noise. Here are some of my main observations.

I have been researching headphone for a couple of months. Bought these as I was leaving on a road trip. After just 2 hours my ears were very sore. Also in both regular and noise cancelling mode there is always a background humming noise, which is faint but annoying. Pretty good bass though.

Sony MDR-NC200D Digital Noise-Canceling Headphones are some of the best mid level headphones that I've had the opportunity to try out. They comfortable, well designed, have a great sound, and do a good job of attenuating the ambient noise. Here are some of my main observations.

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

I had been looking for noise cancelling headphones that delivered a balance of performance, comfort and cost. This headset does just that, it is compact enough and certainly comfortable as well. I used these on flights and while mowing the lawn. I also bought a pair for my wife which she also likes.

Recipients seem very happy with headphones.. Sound quality good. Light on ears. Blocks out requests from mother!

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

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

it is the best sounding headphone for this price easily available and nice bass.

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