This star projector is a four-in-one device featuring a water ripple effect, Bluetooth speaker, white noise machine, and night light. It uses a double projection lens to display 21-color water wave patterns and starry sky effects, creating a relaxing atmosphere with soothing audio. The projector includes eight built-in white noise options: twinkling stars, summer nights, streams, waves, birdsong, rain, lullabies, and bonfires, making it ideal for use in a child's room to support restful sleep. Equipped with a built-in Bluetooth 5.0 speaker, the galaxy projector allows wireless connection to your device for playing personal music. In sound-activated mode, the lights pulse in sync with music or claps, enhancing the ambiance for parties or gatherings. The projector features a magnetic head and body design for easy angle adjustment, enabling customizable light projection. Suitable for various settings including bedrooms, home theaters, parties, relaxation spaces, and romantic dinners. A remote control is included for convenient operation, allowing users to turn the light on or off, adjust brightness, switch lighting modes, change speed, select music, and control volume. The device also offers an auto-shutdown timer with options for 1 or 2 hours. If no timer is set, the projector automatically powers off after 4 hours but can be reactivated as needed.