... Quick OverviewThis LED EL T-shirt is made of 100% cotton. It has an electro-luminescent panel (EL) ... is universal, you can use the other EL panel to replace it. Stylish and convenient. Feature:1 ... pictures Guitar, DJ , IPHONES APPLE ETS EL panel attached to the Disco T-Shirt with Velcro, ... panel and battery pack.Uses 4x AAA batteries (batteries not included)or DC 6V power supply Sound Activated LED Light ...