Details DOSH SIRIM Approved Reduces noise levels up to 37 dB (SNR) Earcup pivot points tilt for optimum comfort and efficiency Wide flat headband is electrically insulted making the earmuffs electrically resistant or 'dielectric' Replaceable ear cushions and foam liners (hygiene kit HYX5) 3M™ E-A-Rfit™ Dual-Ear Validation System testable 3M™ PELTOR™ X5 Earmuffs are a high performance hearing protector designed for very high noise environments; they offer a Single Noise Rating (SNR) of 37 dB for headband, hard hat-attached, and behind-the-head models. The high attenuation provided by these earmuffs is a result of a combination of specially-formulated foam in the earcups and cushions with an innovative spacer and cup design. 3M™ PELTOR™ X-Series Earmuffs deliver comfort, design, and protection in one groundbreaking earmuff line. Additionally, these earmuffs have earcup pivot points that tilt for optimum comfort and efficiency, as well as replaceable ear cushions and foam liners to help ensure acceptable noise reduction, hygiene, and comfort.