in sealed box not used Give sleep a chance with the original sound machine. tan colour First invented in 1962, the Dohm was initially called the Sleep-Mate (or Sleepmate) and has been beloved by generations since. The classic model features our signature fan-based natural white noise with two speed options for adjustable tone and volume. How it works: Just plug it in, flip the switch to high or low, then rotate the cap and collar to find the best sound for you.
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