N Glossary : Telephony, VoIP and other terms
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The higher the NRR decibel (dB) rating the greater amount of noise reduction. For example, an earplug with a noise reduction rating of 29 dB provides more protection than an NRR 25 earplug. High NRR rated headset |
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NRR stands for Noise Reduction Rating and is a measure of the amount of sound reduction that a hearing protection device can provide.
