1. Smart Projection Lamp --- If your child is afraid of the dark, this star and moon projection lamp can be a great addition to a bedroom. Romantic and dreamlike lights create a starry sky effect in the room, helping children relax and fall asleep. 2. 8 Colors Mode: Warm white, red, blue, and green LEDs provide 8 color options. Various patterns create a calming atmosphere, making it feel like being under the sea or among the stars, depending on the selected theme. 3. Rotation Function --- With a rotary switch, the night light projector offers 360-degree rotation, projecting moving stars and moon across the ceiling and walls. This creates a dynamic starry sky effect, ideal for a soothing and peaceful environment. 4. Power Supply: The projector lamp can be powered by 4 AAA batteries (not included) or via USB cable (included). Soothe and Calm Your Baby --- The night light projector brings the beauty of the starry sky indoors, creating a comforting ambiance that may help support baby's sleep routine.