Sweet Dreamz On the Go is the all-in-one baby soother to calm fussy and tired babies: a must-have for every busy family. Each adorable soother comes equipped with a built in nightlight along with calming sounds and melodies. Choose from four gentle sounds, including a mother’s heartbeat and a soothing “shhh”sound, as well as four additional tranquil lullabies. Three different modes allow you to select the perfect setting while calming baby and easing them to sleep, wherever bedtime may land.Key FeaturesCharacter face lights up with a soft, calming amber glow 8 soothing sounds & melodies: Mother’s Heartbeat, Ocean Sounds, Gentle Rain, Le La Lu, Claire de Lune, Satie, Lullaby Waltz, Popular Rhythmic “Shhh” Sound Built in sound soother reactivates when baby wakes or makes noise Three multipurpose modes: Light and music with no sound sensor, light and music with sound sensor, light only Adjustable volume control 15 minute auto shut off timer for light45 minute auto shut off timer for soundHeart shaped clip allows unit to attach to strollers and car seats Requires 3 AAA batteries; Batteries not includedRecommended for ages 0+