Headset Driver unit - Ø40mm Impedance - 32Ω Sensitivity - 112dB±3dB Frequency response - 20Hz~20,000Hz Cable length - 1.2m Connectivity - 3.5mm Microphone Unit - Ø6x5mm Impedance - 2.2kΩ Sensitivity - -54dB±3d Directivity - Omnidirectional Type - Condenser