Passive or Electronic Earplugs?

Use passive earplugs when you want to hear all sounds clearly, but quieter. When worn correctly, ETY•Plugs HD Safety Earplugs reduce all sounds the same amount so speech and environmental sounds are heard clearly. The amount of sound reduction provided by these earplugs is enough protection for most industrial uses.

Use HD-15 electronic earplugs for natural hearing when no noise is present and automatic protection when noise exceeds safe levels. Natural hearing is instantly restored when sound returns to safe levels.