"Driver Unit: Ø40mm
Sound Pressure Level: 112±3dB/1kHZ/1mW
Frequency Response: 20Hz～20KHz
Impedance: 32Ω±15%
Rated Input Power: 20mW
Maximum Input Power: 40mW
Mic Frequency Response: 20Hz～20,000Hz
Mic Impedance:  2.2Ω±10%
Mic Sensitivity: -58±2dB
Cord Length: 2m
Input Connection: 3.5mm plug +USB"