1.The night light of the planetary projector is easy to use and has three steps:1.Insert movie,2. Press the switch,3 Adjustment methods. 2.Children's projectors are easy enough to use for children!12 in 1 planetarium projector: with 12 display scenes: The solar system allows you to experience a different . Near the solar system, , celestial bodies, deep forests, etc. It can stimulate children's imagination. 3.You can also showcase the mysteries of the universe !Multiple optional display modes:It supports control of movie lights (pressing the second button to turn them on/off) and side star lights (pressing the third button to turn them on/off/change the light mode). There is no noise during work, creating a relaxed sleeping environment. The fourth button can turn on/off star rotation and program to turn it off by pressing for 2 seconds (fixed for one hour) 4.HD Galaxy Projector:-definition projection updates in 2023. Rotate the upper spiral ring to adjust the length to fit the projection distance, in order to obtain a clear image. Supports a projection distance of up to 5 meters and a projection area of 134 square meters. 5.A good gift for children:Stimulating children's curiosity and imagination - a fun educational gift for children. It is also suitable for family gatherings/family /Christmas decorations. Comes with 13 film slides Colour:White&Black Material:plastic Package Contents: 1 x Projector 1 x USB cable 1 x English instruction manual Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.