The Summer Infant slumber buddies butterfly baby crib soother creates a serene ambience that will lull your baby to sleep. It can be easily attached to the crib. This battery-powered music soother has cute characters that act like your child"s nighttime companions. It plays nature sounds and lullabies to soothe your little one. Plus, it offers a star-filled sky display that acts as a soft nightlight to comfort your child. This baby crib soother and nightlight has a 30-minute timer that automatically shuts it off to save battery life.