Every once in a while the Surefire Sonic Defenders go on sale a Walmart. That's where I bought them for the whole family.
When I went to Clackamas County Public Safety Center last week, they said that ear muff style ear pro had to be worn because of the bone conduction of sound is more amplified indoors in a closed environment.
When I went to Clackamas County Public Safety Center last week, they said that ear muff style ear pro had to be worn because of the bone conduction of sound is more amplified indoors in a closed environment.