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Caldwell Sigma Electronic Ear Muff 20NRR



  • Folding compact design
  • Fixed padded headband
  • Adjustable cushioned ear cups
  • ANSI S3.19-1974 Rated
  • NRR 20 noise reduction
  • Amplifies low level sounds
  • Compresses High Db noises
  • Uses 4 ?AAA? batteries (INCLUDED)


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