sas safety

  1. J

    Are their any earmuffs with deep bass?

    Hello. I need help to find a hearing protection noise isolating ear muff headphone. The ones I have saw online are the Howard Leight Sync, Honeywell Sync, an AM/FM earmuff with clock brand unknown, and the 3M WorkTunes. However, I have saw a frequency graph of the Sync online, and other than...
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