project a starry night sky onto the walls and ceiling of any room Classic arched design Alarm clock function Simple design， easy to use Material: Plastic Color: Silver + white LED light flash in 3 colors - blue， green， red Colors change circularly. When put in dark area， the effect is more attractive Powered by 3xAAA batteries (not included) Create a amazing night sky in your room with this projection clockPackage Included:1x LED Magic Digital Projection Alarm Clock 1x User Manual