Sound-activated colorful LED lights car sticker. The colorful LED lights will flash as the music rhythm, give you a romantic and fashional ambience. * Designed to decorating your car, bring you with cool and gorgeous lighting show. * The sound sensitivity is adjustable by a knob as you need. Easy to use, just plug to 12V DC power and it will produce beautiful effect. * It"s a thin sheet with adhesive tape that can be stick on rear windshield or side window. * Equipped with a car charger that can be directly inserted into car to make lamp light.