Power Supply:1*AA battery (not included). Product feature: 1.lightweight is 1 / 10th the weight of an Ordinary Mirror. 2.non-toxic, non-polluting, waterproof, corrosion-resistant. 3.Clear as a mirror. The near and mirror parts are identical; the distant (2 meters away) object will be very light and sticky. After the paste, and then tear the surface of the protective film to achieve a perfect decorative effect. Note: Due to the lighting effect, monitor's brightness, etc., there could be some slight differences in the color between the photo and the actual item; I hope you can understand.