mini speaker support SD Card,U-flash, 3.5mm audio output built-in battery,7 hours mini size:300 ... :11.12Kgquantity:30pcs terms of payment: 30% in advance by T/T,the balance should be ... of haikexun:Haikexun plastics electronical Co.,Ltd ,located in A building qiaotao community fuyong town,shenzhen city china, ... covering an areas of 4000m,was founded in May 2007.We are professional on the plastic ...