[KongchangAI]
Unverified92% confidenceFactTime unknown

NRR值需除以2再从环境分贝中扣减才是实际隔音效果,即标称NRR33dB的耳塞在100dB环境下实际降至约83-84dB,选购时不要直接用标称值判断

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92%
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Long-term
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