Summary: The noise cancelling works okay, but on a recent flight I could still hear people. When I put my ipod on and the noise cancelling, it was amazing, I heard nothing. These are also great for making phone calls with, the sound is great.
Pros: Extremely comfortable, Great carrying case, Music Quality Excellent
Cons: Can Still Hear People, Little bulky, Noise Cancelling Okay, Sound Heard Externally
Summary: I've used this only on the airplane so far, but it has worked well. It lifts from my ears sometimes, if I tip my head and I hear outside sounds when this happens. There is some noise bleed at louder volume levels, but nothing bad for a plane ride that already has plenty of noise from the engines. The sound is good and clean. I much prefer these that I picked up for far less than the Bose that everyone told me get.
Summary: Le son est très bon, la réduction de bruit fonctionne très bien. Le câble "standard", et la possibilité de couper la réduction de bruit pour écouter la musique sont de gros plus par rapport à son équivalent chez Bose.