... NoCharging Time: 2 hoursBattery: 80MAH (Polymer rechargeable battery)Accessories: Bluetooth earphone,USB cable,Manual,Colour retail pacakgeOEM: S302Packaging & DeliveryPackaging ... word:S302 sport earphone bluetooth,S302 handsfree earphones,headphone bluetooth 4.1Description of bluetooth earphones :MaterialABS, PVC cordHeadphones Driver UnitΦ10mmHeadphones Impedance32ohmsHeadphones Sensitivity58 ...