HDE 2 Piece Light Strip Car Interior Accent 15 LED Sound Activated Accent Light with Car Charger (Neon Blue) Blue LED lights flash in sync with the best of your music Three modes of operation On, Beat and Off | Come pre-wired to DC power adapter Pre-wired lights are easy to install | Just mount with adhesive tape and plug cigarette adapter in Light Size: 21cm x 1.5cm (8.2" x 0.6") | LED Color: Blue Package Contents: 2 x Blue LED Sound Activated Car Lights