1. 100% cotton el flashing shirt,washable,rich in color. 2.CE ,ROHS ... ,low power consumption,long lifespan,soft light4.Best selling productSpecification1.Product structureT_shirt+el panel+driver2.T_shirt(1)Color.different color as ... color flashing,long lifetime4.DriverBattery:2 AAA ,3 AAA ,4 AAA 5.Applicable scopeDisco, party, concerts, sports event, gathering Best selling El flashing Tshirt