... silicon11.cable material:high plasticPVC material12.CE/RoHS certifiedQuestions: 1:What is the raw material of your skull earphone ,the plastic or ... requirements . 4:Hi,Man,can you make your earphone to work with Ipod,Iphone and another Mobilphone ?Yes,of course ,the ... difference is jack ,different jack can decide to work with the player ,the following are different ...