Questions
What is the difference between white, pink and brown noise?
White noise has equal power at every frequency and sounds bright. Pink noise loses 3 dB per octave and brown noise 6 dB, so they sound deeper and softer.
Is white noise safe for babies?
Keep the volume low and the speaker as far from the crib as you can. A study of infant sleep machines found that some get loud enough to harm hearing at full volume.
How does the sleep timer work?
Pick 15, 30, 60 or 90 minutes. The sound fades out over the last 30 seconds and stops when the time is up.
Does it keep playing when my phone is locked?
Many phone browsers pause sound from web pages when the screen locks or the browser goes to the background. Keep the screen on with the page open.