*Driver Unit: 2pcs dia. 40mm
*Frequency Response: 20-20kHz
*Impedance: 32ohm
*Sensitivity: 110dB
*Plug: USB 2.0
*Characteristic Build-in Sound Chip
Latest USB technology: Uses the latest USB circuitry to give a very low internal noise and a high signal-to-noise ratio; No auxiliary power or sound card required.
Full-duplex capability: Full-duplex (microphone as well as speaker) USB adapter for the ultimate in both input and output performance.
Plug-and-play convenience: Plugs right into your USB port
Uses standard Windows drivers: Works with Windows 98SE, ME, 2000, XP, and Vista operating systems; No additional software required!