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 Windowsr 98SE, ME, 2000, XP, and Vista operating systems; No additional software required!