EdisonBright SureFire EP5 Sonic Defenders Max Full-Block Earplugs, triple flanged design, reusable, Black, Medium bundle with USB powered flexible reading light "Full-block" design provides 26dB Noise Reduction Rating (NRR) to protect against potentially harmful noise Soft, adjustable, triple-flanged stems provide secure seals in ear canals and all-day comfort Made from hypoallergenic medical-grade polymer that's soft, comfortable, and durable Patented EarLock retention rings utilize seven contact points to lock earpieces in place and fit the same way every time This bundle includes EdisonBright USB powered flexible reading light