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The Sonis® range of ear defenders have been designed by the JSP R&D team. Working with a leading UK acoustic engineering research facility they have developed an ear defender range that peaks at an unbeaten 37 SNR. Compatible with our full range of Evolution® Safety Helmets. 

Features & Benefits

  • SNR 31
  • Medium attenuation small compact cup 107-112dB
  • Substantial industrial noise
  • Construction & Agricultural machinery
  • Roadworks
  • Forestry
  • Engineering
  • Hygienic
  • Customisation
  • Colour Coding for easy selection

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