Unverified85% confidenceDecision RuleTime unknown
通勤降噪需求应选标称主动降噪深度≥40dB且带自适应降噪的机型；仅办公室降噪咖啡机/空调等中低频噪音，30-35dB档位已足够，无需为顶级降噪付高价
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