"The 3M Optime 98 is one of the most versatile earmuffs in industry today as it delivers the proper protection needed for a broad range of work areas with increased noise levels. When noise levels reach up to 98 dBA, there is no better choice earmuff than the Optime 98. U.S.A. Adjustable Fit Yes, Disposable No, Case Included No, AM/FM Radio No, Hearing Protector Type Earmuffs, For Noise Levels Up To dB 98, Pairs qty. 1, Noise Reduction Rating NRR dB 25. Lightweight, comfortable and effective For noise levels up to 98 dBA NRR 25dB Dual low pressure bands improve comfort Broad foam cushions provide low surface pressure Universal, affordable protection Headband ideal for environments including factories and power equipment use Dual low pressure bands improve comfort Cushions provide low surface pressure"
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