【3-in-1 Starlight Projector】: The moon and stars lampshade will take you into the night sky, and the underwater world lampshade will make you appreciate the mystery of the sea. Removing the projection lampshade is the warm night light that accompanies you throughout the long night. 【8 Color Changing Modes】: Through the color coordination of blue, red, green, and white lights as well as rotating lighting, which leads to a dreamlike experience. 【2 Power Supply Modes】: USB / Battery Powered (4 x 1.5V AAAA batteries not included) can be powered by adapters, computer USB ports, power banks, etc. or moved by battery power (Please do not use USB and batteries at the same time) 【Battery Protection Design】: The battery frame is located at the bottom of the projection lamp and it is fixed with a small screw which protects the battery and keeps its beauty. 【Ideal Gift】: Can be used not only for room decoration, creating a warm home, but also for parties, birthdays, etc.