1. The projection angle can be adjusted up and down. 

2. There are two timing modes (45 minutes and 90 minutes). 

3. The speed and brightness of the stars can be adjusted. 

4. The change speed and brightness of the nebula can be adjusted. 

5. It supports the switching of 8 nebula color modes. 

6. The nebula and the stars can be used in combination or separately.

7. It has the function of a small ambient night light at the base.