The GN 8110 USB is a professional quality headset system that dramatically improves performance for any PC voice application. With the GN 8110 USB, you bypass the sound card and connect directly to your PC's USB port, virtually eliminating sound card compatibility problems. The GN 8110 USB features superior technology that enhances the benefits of USB connectivity. With SmoothStream digital audio, you get clean, distortion-free, CD-quality sound. Without the distracting echo effect common to Voice over IP applications (VoIP).