❤20 Non-Looping Sleep Sounds: White noise ,Brown noise, pink noise, blue noise, fan,brook, rain, ocean,bird and Bonfire,suitable for for Baby and Kids and Adults. | ❤Precise Volume & Timer Settings:With 32 Levels of Volume ,it is perfect for baby sleeping .And you can set 1 hour,2 hours,3 hours,4 hours and continuous play,control the comfort level for your own environment. | ❤Unique Design: Solid-state design with 3.01inch*3.01inch *1.77inch,it is portable for home, office or travel,can give you a perfect sleep. | ❤Function & Safety:Memory function automatically restores your previous volume, sound and time,it is powered by AC or USB.The machine is approved by FCC, CE and RoHS,don't need to worry about accidents. | ❤Any issue just don’t hesitate to contact us.We will try our best to help you!