Star Projector: Once activated, this function allows the lantern to project stars on the ceiling. Ideal to give a "starry night" atmosphere to a child's room. Music Night Light: You can select up to 4 pre-recorded lullabies. You can also stream the music or story of your choice wirelessly using a smartphone or tablet. Crystal Detector: The night light will detect your child's crying and turn on automatically to soothe him. Another interest: while the child sleeps in the secret of the night, the night light saves his battery! Rechargeable Battery: Rechargeable, this night light has a battery allowing autonomy for 5 days, for 30 minutes of use per day. Trousselier - The Little Prince Saint Exupéry - Nightlight - Lantern ReVOLUTION 2.0 - Ideal birth gift - cartoon - musical star projector - crying detector - rechargeable battery.