... What is the raw material of your skull earphone ,the plastic or metal ?For this earphone ,it is plastic . 2:What ... ,the most character is that bass sound are very strong ,once you hear it ,you will feel ... and another Mobilphone ?Yes,of course ,the difference is jack ,different jack can decide to work with ... :Worldwide shipping will be okay2:Our shipment time is 15-25days ,but the accurate time are based ...