... any radiations 3:made of 100% cotton 4:light ,brightness,long lifetime 1 The EL T-Shirt is the T-Shirt ... colorsMaterials100%cottonPower2 /4 *AAA batteryShirt shapeshort &long sleeves ,unisexsizeXS,S,M,L,XL,XXLAdvantagefashion, eco-friendly,long lifetime,colorfulUsageparties, concerts, ectpackage1pc/transparent bag ...