Docooler Car Sticker Music Rhythm LED Flash Light Lamp Sound Activated Equalizer (90x25cm) Sound-activated colorful LED lights car sticker.The colorful LED lights will flash as the music Designed to decorating your car, bring you with cool and gorgeous lighting show.The sound 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.