The NebuLight projects a realistic starry night sky onto the walls and ceiling. It's your own personal galaxy! Sound-activation will make a flashing light to change patterns with the beat of the music. - Four soothing color options(blue, red, green, white) - Can project solid or multicolored ocean wave lighting effects. - Create up to 21 lighting modes - Remote Control & Timer - Lights can be sound-activated with Music (Built-in Mini Speaker to connect to your smart phone or tablet via the Bluetooth)