Creative Sound Blaster Omni Surround 5.1 USB Sound Card with High Performance Headphone Amp and Integrated Beam Forming Microphone Hear the power of sound blaster technology on your PC and Mac with our SBX Pro Studio and Crystal Voice Technologies Advanced audio technology that delivers 5.1 discrete channels of vibrant sound for your digital entertainment.If no audio output when playing digital files check whether the powered speakers or external amplifier are connected to the line out jacks. Easily converts the PC into a cinematic entertainment system by providing a compelling 5.1 Surround sound Built-in dual microphones with Crystal Voice Technology to enable optimal performance of headset-free use. Compatability - Microsoft Windows 10 / Windows 8 / Windows 7 / Windows Vista.Mac OS 10.6 & above