With a 105 dBA noise-level rating, these muffs provide the protection you need for most construction and manufacturing environments. Double-shell Twin-Cup™ technology ensures ultra-effective broad-frequency attenuation. Low-profile, behind-the-head design enables use with most protective eyewear and nearly any helmet. • Rated for noise levels up to 105 dBA. • Double-shell Twin-Cup™ technology. • Low-profile, behind-the-head design. • Liquid-filled foam ear cushions. • Color-coded for compliance sighting. With a 105 dBA noise-level rating, these muffs provide the protection you need for most construction and manufacturing environments. Double-shell Twin-Cup™ technology ensures ultra-effective broad-frequency attenuation. Low-profile, behind-the-head design enables use with most protective eyewear and nearly any helmet or hardhat. Liquid-filled foam ear cushions more easily conform to the contour of your head, ensuring a low-pressure, comfortable fit. Color-coding simplifies workplace compliance sighting. Ear Muff Style: Behind the Head; Attenuation Rating: 29 dB; Dielectric: No; Folding: No.