Plug it in, angle it at the ceiling, then the light will be full with your room or bathroom. It can be adjust from 0-30
degrees so that the room will be illuminated by the projector. It comes with an energy saving sleep function that will
turn off automatically after one hour so you can relax and enjoy the ocean waves when you go to sleep. It is energy
saving. It also comes with a speaker and 3.5 mm audio plug so you can relax to your favorite sounds. Above all, this is
waterproof and perfect for relaxing in the bathroom too. Requires 4x AA batteries (not included).