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White noise machine

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White Noise Machine for Sleeping, Portable Sound Machine with 17 Soothe Sounds, LED Night BDSN

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What Is White Noise?

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Why Does White Noise Make You Fall Asleep?

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Ultimate White Noise Machine Comparison

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KFiAQ White Noise Machine for Sleeping, Sleep Sound Machine with 17 Non-Looping High Fidel BDSN

A white noise machine is a device that produces a sound with a random character, which sounds like a rushing waterfall or wind blowing through trees. Often such devices do not produce actual white noise, which has a harsh sound, but pink noise, whose power rolls off at higher frequencies, or other colors of noise.
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