... Sound simulation software, it turns your stereo speaker or earphones into 7.1 channel environment. No drivers required, just plug and ... jack, mono microphone-input jack Functional keys: microphone-mute, speaker-mute, volume-up, and volume-down LED indicators: microphone ... 3D (virtual 7.1 -channel sound simulation software) for Microsoft Windows XP/ Vista Stereo active speaker or stereo earphone Mono ...