14 Soothing Sleep Soundtracks: Letsfit white noise machine has 3 white noise, 3 lullabies, 3 fan sound effects and 5 relaxing natural sounds. A sleep sound rhythm that helps you drift off to sleep. Soothes Fussy Infants: Our calming nature sounds are perfect for your baby\'s sleep routine to help them fall asleep faster and sleep longer. A Sleeping baby means more sleep for the whole family. Great for Privacy and Concentration: Our sound machine can cover up conversations making it perfect for office privacy. It can also be used as a low-cost way of blocking out environmental noises and distractions. Adjustable Night-light: A function perfect for new mothers, this night-light emits just enough light for night nurseries or for use when changing diapers without being too bright causing disturbances. Timer and Memory Function: Play our white noise machine at 15, 30, 60, 90 and 120 min intervals with auto-off timer settings. Our sleep machine can remember the last sound and volume when restarted, meaning there\'s no need to worry about re-setting.