Great for the price
The earplugs do reduce volume without sacrificing sound quality. They are comfortable in the ears. I haven't been on any flights, since purchasing them. So I cannot say anything, one way or the other, about the bonus plugs for evening out pressure in the ears.<br /><br />The reason for 4 stars is not related to any performance issues. I just haven't had the opportunity to put noise reducing earplugs to the test at a live rock performance yet. They may well be 5 stars, but I'll just have to wait and see.
Rating: 4 stars