The device projects a starry sky onto the ceiling and walls, creating a wonderful atmosphere in a darkened children's room. Babies and toddlers are fascinated, and the starry sky conveys a sense of security. Four different color worlds are available at the push of a button: yellow, green, blue, and an automatic color change. It is ideally suited as a sleep aid, as the night light is equipped with a 45-minute automatic shut-off feature. Thanks to battery operation and very low energy consumption, the device is very easy to use and portable.