3-in-1 starlight projector: The moon and stars lampshade creates a night sky effect, while the underwater world lampshade brings the mystery of the ocean into your space. Remove the projection shade to use as a warm night light for comfort throughout the night. 8 color changing modes: Features a combination of blue, red, green, and white lights with rotating projection for a soothing, dreamlike atmosphere. 2 power options: Can be powered via USB or by batteries (4 x 1.5V AAA batteries, not included). Compatible with adapters, computer USB ports, and power banks. Do not use USB and batteries simultaneously. Battery protection design: Battery compartment is located at the base and secured with a small screw to ensure safety and maintain product integrity. Ideal gift: Suitable for room decoration to create a cozy atmosphere, and also perfect for use during parties, birthdays, and other special occasions.