This bumper sticker is an animated Sound Activated LED Equalizer Bumper Sticker that uses a layer of soft, sticky thin sheet material that can be placed on your rear windshield side window. Plug it to 12VDC power and you can dazzle and amaze by-passers with your special effect car bumper sticker.
This product is furnished with double faced adhesive tape and it is covered with a protective membrane, you can remove membrane and stick to back windshield. Furthermore, if there is a trouble for you to connect the wires in the car, you can demand to equip a lighter for cigarette instead, the lighter can be directly inserted into car to make lamp lightening. via amazon