Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Noise Cancellation did not work
Review: There are a lot of good reviews, so it is quite possible I simply got a bad pair.I tested it out in three places. Next to a garbage disposal, near a noisy fan, and next to a lawn mower (I have been on planes that sound like our lawn mower).The noise cancellation did almost nothing. Switching on and off did make it sound a little different, but otherwise did nothing.So I went back to using earbuds under plain ear protection (ear muffs). I added a star, since the return was an easy process.
