Compact 51 channel usb sound card and headphone amplifier with 192khz24 bit hd sound and sonic studio suite true 51 channel hd 192khz24 bit surround sound from a compact usb powered device 104db signal to analog ratio snr ensures pure sound sonic studio provides complete control over loads of sound technologies perfect voice technology eliminates noises for clear in game communications independent mic and master volume controls for instant in game adjustments integrated headphone ampli