The Safariland Foam Impulse Hearing Protection uses patent-pending filter technology to instantly reduce dangerous sound levels while still allowing speech and audio to be heard.  Soft, memory foam tips provide a universal fit and all-day comfort, while the removable neck cord keeps them from getting lost when not in use.  Adjust your hearing protection on the fly by using either Impulse Mode to achieve 38db Peak Impulse Reduction + 13db Continuous Reduction, or Full-Block Mode to achieve 20db Continuous Reduction.  Ideal for the shooting range, hunting, tactical training or operational missions.  No batteries required.