... EL Sound Active . EL flashing t-shirt1.high quality el t shirt, ideal for your artwork or logos printed on as promotion T-Shirts ... ,different artwork, same price2.Works with 4 x AAA batteries, with on/off feature . 3.180g,100%cotton washable T ... to activate up.9,Flashing panel is fixed with T-shirt by Velcro, or ... famous brand as PEPSI,HEIKEN The el t shirt Washing instructions:1)Washing clean ...