http://www.surefire.com/EP3-Sonic-Defenders
These look very interesting. Do they work? Are they worth it?
These look very interesting. Do they work? Are they worth it?
Yes, they work. I have a few and have been so impressed with them that I've given them as gifts.
Always double up with muffs over plugs.
The best you can do is active muffs over plugs.