I will be happily wearing these all summer. I bought these for my wife, who has small ear canals. I have a fuzzy navy pair, a camo pair, a royal blue pair, and a green pair. I only wear when going down to the kitchen or to keep my feet warm watching tv. These are cheaper than OEM that is for sure. It is not a 4. There is no disruption from outside noise at all and with music playing I can?t hear anything. Also correlates with the 8 & 16%. Ive been having a great time gaming with this keyboard because of its responsiveness and textured preset keycaps. You can turn on ANC to cut this off completely, but then youd be at danger of approaching cars/people/animal etc.