1.Userfriendly and automatic shutdown timer: projector offers an adjustable bracket 0 to 360°, which increases the usability of the projector, so you can switch the projection between the ceiling, the wall or any other place where you. With the auto off timer function, it will automatically shut off when the time has elapsed and does not disturb your sleep or your child. Note: By default 4 hours, it will turn off automatically. 2.Unique 12 in 1 Planetarium Projector: The star projector comes with 12 different 4K HD glass. Movie records of realists take you into a fantastic world of the universe. 3.Easy to use for children: The LED star projector for kids room only takes 3 steps to guide you through the visual experience of the planetarium: insert the film disc turn on the switch adjust the focus. Simple, for children to use. Interesting manual switching of film discs well helps children's intellectual development. 4.HD realistic projector: HD planetarium projector, turn the focus adjustment knob to adjust the focal length for an image. Supports up to 3 meters of projection distance and a projection area of 135 square feet. The stars scattered around the room provide a magical light show inside.