NRR is a rating system for industrial headsets and ear plugs for people that work round hearing-damaging levels of sound (like stadiums, airports, factories with big machines, etc.).

We don’t carry NRR rated headsets.  We cannot guarantee any level of hearing safety with our headsets.  They are only meant for office-level background noise.

Here is a cool website I found with more information so we can make an HDSAnswers article:

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