Blue Ear Defenders Safety Noise Protection Ear Muffs Hearing Protection (Pack of 5) Lightweight rigid cup ear muffs. Soft foam-filled ear cushions for comfort over prolonged periods. Flexible headband with pivoting, sliding cup connection for improved fit. For outdoor and industrial applications. Certified to EN352. Offers hearing protection levels H=30dB, M=25dB, L=18dB and SNR=21dB