MODEL- AC-851B            VENDOR- CYBER ACOUSTICS
    
FEATURES- Internet Communication USB Headset- OEM Pack
       Stereo Headset and boom microphone with DNCT4 (Direct Noise 
        Canceling Microphone Technology). 
* USB connectivity
* Stereo headset with adjustable headband and boom arm
* 7 foot shielded cord with USB 2.0 connector
* 180 degree microphone 
* Leatherette ear pads 
* Ambidextrous design (wear on right or left side) 
     
  -- SPECIFICATIONs ----------------------------------
DRIVERS           - 27mm dynamic drivers
MICROPHONE        - Output       : -67dBV/microbar, -47dBV/pascal +/- 4dB
                    Power voltage: 1.5v to 10v
IMPEDANCE         - Headphone    : 32 ohms
                    Microphone   : 2.2K ohms
FREQUENCY RESPONSE- Headset      :  20 ~ 20,000 Hz
                    Microphone   : 100 ~ 16,000 Hz
www.cyberacoustics.com