LOGITECH H390 USB HEADSET

• Microphone Type: Bi-directional
• Input Impedance: 32 Ohm
• Sensitivity (headphone): 94 dBV/Pa +/- 3 dB
• Sensitivity (microphone): -17 dBV/Pa +/- 4 dB
  

Full Product Details:
Logitech H390 USB Headset with Noise-Canceling Mic