Connect your XLR microphone directly to your computer. Start recording instantly. Analog to digital converter built into cable. * Embedded A/D chip technology with audio signal boost eliminates the need for additional signal conversion devices. * Patented "Live when Lit" technology - cable ends light up indicating when sound is being transmitted. 10 Foot heavy-duty shielded cable. * Compatible with XLR microphones that are not phantom-powered. * Compatible with Win98 SE / Win ME / Win 2000 / Win XP and Mac OS9 / OS X without additional driver. Simple USB plug-and-play connectivity .