Detailed Product Description EL cap ,EL flashing cap EL cap ,EL music cap ,EL flashing capFlashing wayEL panel moving by sound ,lounder ,flashing ... CR2032Cap color Black ,red ,yellow ,pink ,white and so on cap quality 100% cotton ,180gEL panel size Usually 5*6cmWarning Flashing ... when walking at night ,and shinning at night Wash Take off EL panel ,then wash OEM and ODM service available,according ...