Good to know about the topic. Thanks for sharing such a fascinating subject. I use noise-canceling earplugs too, and it' gives me perfect safety. I think hearing protection is necessary for all of us.

I bought a pair of noise-canceling earplugs from here www.bigearinc.com , and it's really great for me. I think the people who ride a motorcycle, shooter, musicians, factory worker, and other needs these types of earplugs.