A mix of 60 soothing melodies, white noise, bird calls ,mountain streams, ocean waves and rainforest sounds, help kids fall fast asleep; It will shut down automatically after playing all 60 pieces of music (about 45 mins)Hippo crib soother toy with soothing starlight & melodies holds babies attention,helps your toddlers work on falling asleep independently, which will keep him entertained as he falls asleep45 mins play time feature is enough time to fall asleep for most of baby kids without having restart it again and againInfant soother has one switch button to control,one 3 levels volume control that can be adjusted to suit your baby's needs; one twilight lamp controls buttons, if you want you could turn it off without stopping musicSoft huggable plush baby light projector sound machine without sharp edges,easy to use will be a great baby shower party gift. (3AA batteries required for slumber toy, not included)