This white-noise machine is designed to promote deep, restorative sleep for babies and adults by masking disruptive noises in the sleep environment.What it does: With its lightweight design and rechargeable battery, the portable machine is easy to bring along wherever your day, night or weekend takes you. It has an impressive 48-hour battery life on just a single charge-this means you won't be caught out on the go.Additional features: The built-in soft LED light has three settings and can help with overnight diaper changes, feeding and finding baby's lost pacifier. The volume-adjustable sound is set to a safe maximum decibel rating of 75db next to your ear. When the sound machine is used at the recommended 7 feet away from baby, the highest volume does not exceed 50db.Sleep sounds:- White Noise- Heartbeat- Shushing- Fan- Rain- Ocean- Nature 48-hour playback time Soft LED-light with 3 settings Rechargeable battery Plastic/silicone/electronic components Imported