Andrea Electronics has combined the benefits of PureAudio USB digital audio which includes Andrea s complete PureAudio Voice Solutions Software Suite (including Audio Commander, Voice Center and Pure Audio Technology) with our noise canceling PC headsets delivering a high fidelity audio experience with the highest voice recognition industry rating.Andrea s PureAudio USB solution bypasses your desktop or laptop computer s integrated sound system, providing increased intelligibility and performance of microphone input and stereo speaker output for all of your digital audio applications including VoIP and speech recognition programs.