- Superbeam earphones- Hi definition USB stereo headset with array microphones and 3D surround sound recording- Great for music listening, VoIP, video conferencing, computer gaming, speech recognition, and stereo recording- Hi fidelity speaker drivers with acoustic bass expansion- USB soundcard with digital sample rates for hi definition audio- Binaural microphone placement for 3D surround sound recording- Adaptive beam forming noise cancellation for boom free microphone VoIP communicationsMic Input- A/D Conversion Resolution: 16 bit- THD + N- 84 dB- Supply Bias Resistor: 2.2K Ohm @ 3.3VDC- Frequency Response: 20-20,000 Hz- Input Range: 0 - 1.25 Vrms- Dynamic Range: 95 dB- Record Gain Range: 6 to 33 dBStereo Output- D/A Conversion Resolution: 16 bit - THD + N: -91 dB- Frequency Response: 20-20,000 Hz- Output Load: 32 Ohm- Output Voltage: 1.27 VrmsANDSB405B