1、Flexible: With 3.5mm/0.1in headphone and microphone interface, paired with USB hub or extension cable, flexible installation, create microphone input and voice output jacks from any USB port. 2、Stereo: External 5.1 USB stereo sound card, supporting three dimensional sound, virtual 5.1 sound effects, no existing sound card, completely independent work. 3、USB Power Supply: No need for external power supply, completely powered by USB, USB2.0 full speed interface, plug and play, high efficiency, replacing traditional sound card. 4、Multi Format: The sound card fully supports WAV, MP3, WMA, MPEG1 (VCD), MPEG2 (SVCD), AVI, DVD sound, DVD AC3, DVD DTS format files, etc, to meet your different needs. 5、Compatible: This sound card is compatible with digital devices with USB ports, and supports for Windows, for Windows 98 2000 Me XP operating systems, etc.