Johnystar electronic factory make all kinds of headphoe ,earphone with high qualityand competive price in China .Js-900mv computer headphone widelyy used for the pc computer ,specailly for theQQ,msn,skype and trademanager .QTY :300PCS/CTN MEANS;60X50X45CMGW: 13.5KGSNW:12.5KGS Welcome all world customer oem or ODM .JOHNYSTAR welcome you! producing area:China payment:T/T