Detailed Product Description we supply mobile phone accessories,mobile phone case, mobile phone pouch,cell phone case ,silicon case,crystal case,digital camera case, camera bag,horizontal case,vertical case,headset,handsfree,earphone,car charger,travel charger,data cable,LCD,flex cable etc. Speaker:1. Size: 9mm2. Frenquency: 50HZ-16KHZ3. Output Sensitivity: 110+/-5db4. Impedance: 32OHM+/-10%5. ...