Large projection mask: supports 360° rotation, and can project stars and the solar system on walls, floors and ceilings; 1.5m-5m rotating focus can adapt to different floor heights. When the product is 3 meters away from the projection , the projection area is 12.5 square, and so on. 4K high-definition slides: equipped with 13 different high- slides; they are the solar system, the earth, the moon, the , the , the composite panorama of the , the Andromeda Galaxy, NGC4302-NGC4298, the observable universe, M60--UCD1, The Nebula, Mystic Mountain and the Small Magellanic Cloud; these realistic discs of the movie take you into a fantastic cosmic world. Silent rotation on the center : It uses a silent motor to rotate slowly, which not disturb your rest and even help you fall asleep faster. the of star trails; as if the real scene of the universe is in front of you. The can be set to turn off after 1 or 2 hours or the default of 4 hours to automatically turn off. High-quality material: Made of safe and environmentally friendly ABS material, the surrounding is smooth and burr-free, which not hurt hands; the light emitted is also extremely soft and not cause harm to the human body. Wide Application: Perfect for decorating your bedroom, game room, bathroom, home theater, ceiling, wall, Christmas decorations, decorations, weddings, birthdays and anniversaries. Also makes a great gift idea.