This is the BEST SOUND MACHINE . . . EVER! I've purchased a few sound machines over the years all claiming to produce natural sounding noise. None sound as natural as this!  My Big Red Rooster Sound Machine is the "real deal." The sounds are so lifeline that it's almost spooky. If you close your eyes, you'll swear you were drifting along on the tide at the beach, or relaxing in a hammock during a summer shower. The sounds do a superb job of masking unwanted noise. Highly recommend. [This review was collected as part of a promotion.]