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Review title: What noise cancelling??? Did not work!
Product review: I recently purchased these headphones for use at work and travel. I can still hear conversations in the office, on the plane, everywhere. It did muffle the high whine of the airplane a little. These headphones are a big disappointment to me. They also did not stay in position on my head; the headband cannot be locked and thus the earphones kept sliding down and needed to be adjusted quite often. I am very disappointed in my purchase.
