... 24.2mm nickel plating,3.5mm 4pole dc plug for earphone : Specification:Materials: copper rod (59%), POM ... style monthly output 5,000,000 pcs,Sample for free 6.We have our own factory ,so ... can design the dc plug according to your instructions.the colors,specifications,length of our dc plug ... ,prompt delivery. 4.Samples can be provide for free for reasonable quantity.small order also welcomeed,the large ...