Etymotic ER125-GSE GunSport Elite EarplugsGSE Rechargeable Earplugs are ideal for gun sport enthusiasts who need protection from firearm blasts, and for people who need protection from loud continuous noise. That can be noise from vehicles or machinery Why electronic hearing protection? Passive hearing protection is cheaper, and involves no electronic circuit or batteries. However, it is not selective in its attenuation, lowering both low and high sounds. That results in conversation and