Detail Information: Mic Dimensions: Ø6.0X2.8mm Sensitivity: -38dB±3dB Directivity: Omnidirectional lmpedance: 2.2KO Driver Diameter: Ø40.00mm Impedance: 32O Frequency Response: 20~20kHz Sensitivity(S.P.L): 96dB±3dB Cord Length: Appr.2.5meters Net Weight Headphone:Appr.230g