AO Safety. If you buy some of their earplugs, you will never have a problem with anything again. I keep them with me no matter where I go. The great thing about them is that, when I have them in, I can hear someone whispering to me in a normal environment, or I can stand directly in front of a 10,000 watt PA booming at full blast and it not be loud enough to damage my hearing (it rattles my bones, which I'm sure causes damage, but my ears are fine). I played in a band that praticed full blast all the time, and without my earplugs, it was too loud, and I couldn't really distinguish between sounds or hear what the guitarist was playing. I don't know why that was, I just couldn't. However, when I had my earplugs in, they blocked out all of the excess noise from my bass amp and the drums and I could hear the guitarist perfectly. So, not only will these earplugs help save your hearing, they will allow you to hear more of the music. And, best of all, they're pretty small and very comfortable. I wouldn't part with mine for anything. Anyway, there's my 2 cents.