... sepecifications:1.style:DS-GE58 (SPORT EARHOOK earphone)2.speaker dimension:9.9mm3.speaker diaphragm:9U4 ... is the raw material of your skull earphone ,the plastic or metal ?For this earphone ,it is plastic . 2 ... . 4:Hi,Man,can you make your earphone to work with Ipod,Iphone and another Mobilphone ... Color Requirements :We can make every part of earphone for different color,such as white ,black ,red ...