[ Sound Machine for Baby & Adults ] This sleep sound machine is with premium speaker, provides vivid simulation of nature sounds, so you or your baby can get into your zone quicker and deeper like sleeping, meditation, yoga, or napping. Adjustable volume making it simple to create a personalized sound environment, masking background noise and allowing for better sleep, office privacy, effective soothing for kids and babies, and calming for sound-sensitive dogs. [ High Fidelity 28 Soothing Sounds ] This sound machine can play 28 soothing sounds including 2 fan sounds,3 white noise sounds,3 rain sounds, 3 brook sounds, 3 seawave sounds, 2 bonfire sounds, 3 lullabies, 3 alpha wave sounds, 3 meditation sounds and 3 birds sounds. It has different sounds keys so that you don't need to scroll through every sound to get to the one you want. Playing nature sounds and sleep sounds for deep restful sleep and relaxation, suitable for adults and baby. [ Warm Night Light for Cozy Sleeping ] This white noise sound machine features an optional night light which emits enough brightness for baby night feeding. Besides, it is proved that children fall asleep easily under soothing light and comforting sound background. As baby moves to big kid rooms, night light provides extra sense of safety and helps children feel secure, it is an ideal sleep soother for baby and kids. [ Easier to Use ] - The sleep sounds machine can be played continuously or 15,30,60 min auto-off timer. Memory function automatically restores your previous volume, sound and time when restarted, so you don't bother to push buttons all the time. What's more, differenct types of nature sounds are categorized as different keys, you can quickly find the sound you need to play, no need to scroll through every sound to get to the one you want, more convenient, save your time! [ Portable & Rechargeable ] This baby sound machine built-in 1200mAh rechargeable battery, it can last 8-42 hours(depends on the volume grade and night light) play time after full charged, so you don't need to plug in all the time or waste money on buying AA batteries. It not only for home usage, but fits to outdoors well. When you are travelling, camping, hiking, strolling with a stroller, you can take it with you and enjoy the soothing and nature sounds anytime and anywhere.