Natural ABS natural material, reassuring and reliable.4 AAA Battery(not included) supply power, use it any time and anywhere. Or optional 6v AC adapter(not included)it projects a very nice rainbow in the room. Perfect in a dark room, you can see the full range of rainbow colors on the wall and ceiling. Good for room, hotel, corridor, showroom. Always bring you romantic.Improves the sleep of children and babies, makes your room more comfortable and romantic. Children go back to sleep more easily.Automatic shut-off after 10 minutes to prevent the batteries from being switched off. Touch the button, it lights up again.