SPECIALLY DEVELOPED FOR THE ARMED FORCES AND LAW ENFORCEMENT. COMBAT ARMS earplugs patented design allows wearers to hear low-level sounds critical to mission safety conversation, footsteps, rifle bolts, approaching enemies. When needed, the plugs filter reacts to provide instant protection from high-level noises like weapons fire and explosions. It's that easy. It's that quick. Now you don't have to sacrifice your hearing in order to protect it.