【3-in-1 starlight projector】: The "Moon and Stars" lampshade takes you into the night sky, and the "Underwater World" lampshade lets you appreciate the mystery of the sea. When you take off the projection lampshade, the warm night light will accompany you all night long. 【8 color changing modes】: The color coordination of blue, red, green and white lights as well as rotating lighting creates a dreamlike experience. 【2 power modes】: Powered by USB/battery (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 is fixed with a small screw to protect the battery and preserve its beauty. 【Ideal gift】: Not only can be used for room decoration to create a warm home, but also for parties, birthdays, etc.