Musical Mobile - Four modes of soothing music-150 soft lullabies,10 musical organ,10 baby song and 5 nature sounds in the musical box.With adjustable volume,Need to keep long press. Projection Mobile and Night Light - Mobile for crib has star lights and image 2 kinds of projection 4 scene modes.Night Light with sweet music or sounds playing along, help comfort your baby during quiet times or nap time. Timing sleep mode - The music box can be timed 20/40/60 minutes and then will be closed automatically by the time at you set. Let the baby in a comfortable and quiet environment to fall asleep. Stand-along Music Box & Rattles - The music box can be carried alone or tied to the arm of the bed. As the baby grows, you can remove the pendant. The pendant can be used as a rattle to attract the baby's attention.