led light up music t-shirt 1.led sound activated t-shirts 2.100% cotton 3.various models for ur choose led light up ... music t-shirt Features:1.EL panel:Sound sensitive,high brightness ,no heat ,long ... (Black ,white ,pink ,green ,red,ect)Material:100% pure cotton,light and thin,confortable feelSize: S,M,X,XL ,XXL(Standard ...