It has Inbuilt sensitive mic, the strip lights can change color as pe the sound and music. Rock lights kits can be widely used in car other vehiclse and also used for interior, dome, neon lights, yacht lights, ect. LED light pods powered by 12V working voltage. It has 4 pcs of LED rock light pods, 2 pcs of extension cable, 1 pcs of remote controller, 1 pack of bolts In the box