... ,M,L,XL,XXL,Color: main is black ,pink ,other color is welcome.EL panelThickness: 0.3-0.4mm,Designs: Over 600 designs ... inside of T-shirt.Connecting wireConnect panel and inverter. 2. What is the function of EL T-shirt?It can light and flash ... up and down with the music or sound. The softer the music, the lower the bars, and the louder the music, the higher they go. 3. How we use ...