9 小时
CNET on MSN4 Noise Colors That Could Help Fix Your Sleep QualityThe legacy of sleep sounds, white noise has lulled people to sleep for ages. Because white noise encompasses all of the ...
The next time he went into the room, he brought a sound pressure meter ... We don’t have good studies on the effects of moderate white noise on babies, but white noise does seem to help ...
6 个月on MSN
White noise is a peaceful type of broadband sound that helps mask and soften other sounds in the area, and studies show that ...
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