SureFire Comply Foam Tipped Filtered Earplugs Lg 25 Pair BlkHearing protection should never be ignored. EP7 Sonic Defenders Ultra earplugs protect your hearing against Noise Induced Hearing Loss (NIHL) without interfering with your ability to hear routine sounds or conversations. Their foam tipped stem design, featuring soft memory foam Comply Canal Tips, fits most people and provides a Noise Reduction Rating (NRR) of 28 dB. Sounds, at safe levels, are allowed to pass through into the ear canal, while