KZON USB 2.0 External Sound Card Adapter Audio Cable for PC Windows Vista Mac Gaming Headphones Plug and play(No drivers Needed) Compatibility: This Sound Card Adapter Audio Cable can support earphones, headphones, microphone, and gaming headsets, etc. International Standard USB Connector, Replace the Traditional Sound Card: No drivers required, just plug and play for instant audio playback, also compatible with all major operation systems (Windows 98SE/ME/2000/XP/Server 2003/Vista/Windows7,Linux,Mac os...) Sound Card Adapter Audio Cable Structure: Interfaces includes USB, headphone/earphone jack, phone gaming headphone jack and microphone input jack. Functional keys includes microphone-mute, speaker-mute and volume-up/down roller. Also with LED indicators, easy to use. 16 kinds of rhythmic pattern, 23 kinds of environment mode. Multi-channel technology, bring you much more vivid shock sound effect. Headset mode and speaker mode can be freely switched. Analog speakers also can be freely adjusted. Enhance gaming sound, offer you the best sound effect!