Here is a review left by a customer on a product. Would you say he was satisfied or dissatisfied?
Title: Worst Noise Cancellation EVER!
Review: I bought these headphones to try them out against my Sony in ear headphones, but I have to say that these barely cancel out 10% of the noise. My Sony headphones cancel at least 60% of the noise. I was hoping the other users were not able to activate the Noise Cancellation, or that the "sweet spot" the other users mentioned was easier to find, but this is not the case. These headphones really suck, and there is almost no Noise Cancellation at all. DO NOT BUY THESE. THEY ARE A WASTE OF MONEY!!!!!
