DO NOT BUY
I made the mistake of falling for their pretty website and I feel completely and totally ripped off. I understand they are not supposed to be fullproof noise cancelling and that they just reduce noise.  The problem is that I have about 12 pairs of cheap foam earplugs that I bought at the drug store that actually do a slightly better job and they were under $10.<br /><br />This was a complete waste of my money. Total rip-off.
Rating: 1 stars