Microphone Sensitivity: Sensitivity at 1 kHz (0 dB = 1 V/Pa Vdc = 1.6V): -40 to -37 dBV Microphone Impedance: 200 Ohm at 1 KHz Microphone Frequency Response: 50-8000 Hz Features: Array-2S Micorphone: Hi-Fidelity Far-Field, 2-Microphone array with Stereo Output Offers the Highest Quality and Performance Over a Single Element Microphones Provides Far Field Speech Recognition With the Accuracy of a close Talking Microphone Small Size for Unobtrusive Mounting on a Monitor or Laptop Extra Long 8 Foot Shielded Cable USB-SA USB Sound Card: Removes the Uncertainty of Legacy PC Audio Quality and Compatibility Issues USB 2.0 Full Speed Operation Device Class Specification V1.0 Compliant (Digital Audio Device) USB Stereo Microphone Input and Stereo Speaker Output Small Form Factor is Convenient for Portability with Audio Peri...