1.Speaker :9mm Moving coil dynamic speaker
2.Frequency response: 20~20K Hz.
3.Impedance: 32ohms
4.Sensitivity: 103dB (+/-3dB)
5.Distortion:  < 3 %
6.Speaker specified input power of driver is 2mW, Max input power of driver:5mW.          
7.Mic Sensitivity:-45dB
8.Plug: Lightning  C68E
9.With Volume Controller
10.Cable : 5N OCC round TPE  cable,1.2M +/-15%
11.Compatible with iPhone 7/6/6Plus/5s/5c/5,iPad,iPod
12:Certificate:CE,FCC,MFi