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Review title: Good noise cancelling
Product review: I've never used noise cancelling headphones before and am quite impressed with these. I used them on a recent flight and the difference is dramatic. They do make an audible hiss when the noise cancellation is turned on, but you would only use it when the environment is noisy enough that you don't notice the hiss.They fold up nicely and are very comfortable. The external battery pack is awkward, but does have a clip that you can attach to your shirt or belt.
