About Product:Product attribute additional function no brand attraction classification heating socks battery applicable type other power supply item No. YLD battery type cylindrical aluminum case cell type liquid lithium-ion battery core (18650) shell material plastic power capacity. 3.7V-2200 mA Battery 1 pair size 70.7*33 main downstream platforms ebay, Amazon, wish, AliExpress, independent station, LAZADA main sales areas Europe, South America, Southeast Asia, North America, northeast Asia has authorized private brands, whether cross-border export exclusive supply of goods