I used this for few transatlantic flights and they completely removed the engine noise, allowing me to enjoy the in-flight movies. They will not, however, completely remove the sound of a baby crying or a drunk shouting at the flight attendant.

Not only is the sound quality crisp and the highs and lows are pronounced but the noise cancellation is unreal and feels like you've entered outer space. Best set of expensive headphones purchased yet. I'll be looking to get the wireless model next

"I purchased a pair of these headphones from Oxford Street London as an upgrade from the previous bulkier version. My other pair of Bose headphones were falling apart and the new model had just come out and so I went out and purchased it. BEST DECISION OF MY LIFE.

The QC25s are arguably the flagship personal audio product from Bose, destined to show up at every airport you visit for the next five to ten years. But like the QC15s before them, the QC25s are battery-dependent.

Bose Quiet Comfort 25 gives amazing comfort and superb active noise cancellation but fails to provide that $300 sound performance. Not worth buying.

Lot of comfort Terrifying noise cancellation Very light weight

Mediocre sound quality Sound quality is rock bottom when noise cancellation is off Feels very cheap physically

Upgraded from the QC15 about two (2) years back, mainly because you could turn the noise cancellation on/off. The sound quality wasn't all that much better, and at times I've also felt as if the QC15 was slightly better.

Great Noise Cancellation; comfortable

Not Durable; flimsy; noise leak

After good experiences with Beats (2 pairs), which were pretty fragile, I came home to Jesus with these Bose headphones. The noise-cancelling part is battery (AAA) powered, but everything else is just mechanical -- no need to charge the headphones themselves, which is a big improvement over my last...

My only gripe is the battery compartment....hard to open/ close the battery contact (spring) can be fragile and misaligned to conact the battery properly. Bose can do better!

Sound quality/ active noise cancel/ super comfort fit for extended periods

the mini jack that attaches to headphone can be fickle....slight movement can cause sound to disconnect/ reconnect with just slight movement. Battery compartment door is flimsy/ hard to open/ close battery contact (spring) can misalign

There seems to be a lot of issues with the sound quality for these 2nd gen Bose phones. These came out before wireless headphones were in any significant use, and when few other companies were making a serious attempt at noise reduction.

Very very good noise cancelling; Industry standard for their time

Not intended for the highest quality audio

The Bose QuietComfort 25 are active noise-cancellation headphones. Not only are they superb at eliminating the low-register noise that is the bedrock of any city soundscape, but they also cut out the frequencies that tend to trample all over your music, often resulting in you having to turn up the...

Higher-grade build than previous Bose sets; Excellent noise cancellation; Pleasant; big sound

Better sound quality available at the price; Easy to leave on accidentally