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. Choosefrom four gentle sounds, including a mothers heartbeat and a soothing shhhsound, 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.