Adaptive Sound Technologies LectroFan... Price: $37.68 (as of 09/15/2020 10:44 PST- Details)

Provides ten fan sounds and ten ambient noise variations, including white noise, pink noise and brown noise
Helps mask disruptive environmental noises so you or your little one can fall asleep with ease. 12 inch cord length
Safe, solid-state design is powered by AC or USB and dynamically creates unique, non-repeating sounds with no moving parts

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