PowerTRC Aurora Borealis Projector, Color Changing Led Night Light Lamp (Blue) Project realistic aurora borealis and nebular light on ceiling or wall (as shown in the pictures on the left when the hemispherical cover is removed), create an enjoyable and relaxing bedtime experience for children, soothe and comfort kids to sleep, also perfect for adults to attain a relaxing and calming effect Eight light projection modes, red, blue, green, and multicolor, choose what you want depend on your mood Built-in speaker, volume adjustable, you can plug in an iPod, iPhone, MP3 or other device and play lullaby music, relaxing, meditation music through the projector while watching the patterns at night Automatic shut off after 1 hour, you can go to sleep with it and it will shut down on it's own, really convenient in kids bedroom 45 degree tilt, allow you to project the light straight up or point in a different direction, convenient for you to cover a larger area and get the wide panoramic effect