[KongchangAI]
Unverified80% confidenceDecision RuleTime unknown

睡眠场景下的音量最小可调步进比音质更关键:应选择支持1%级或有'夜间微音量'档位的设备,普通蓝牙音箱最低档往往仍偏大(可闻50-60dB),无法覆盖到理想的30-40dB助眠区间

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