Baby Brezza Sleep + Soother Portable Sound Machine is a fully adjustable sound and light machine to help you and your baby sleep better! It features 18 soothing sounds and a built-in adjustable nightlight along with 4 timer settings to help your baby fall asleep and stay asleep. It’s small and lightweight so you can use it at home or on-the-go. Uses 4 AAA batteries (not included) or USB cord. 1-year limited warranty.