The GSX 1200 PRO is a USB audio amplifier designed primarily for PC and Mac gaming. It features a Sennheiser Binaural Rendering Engine, a groundbreaking 7.1. Virtual Surround Algorithm to deliver the ultimate positional gaming audio experience. This was developed with the needs of professional gamers in mind. The GSX 1200 Pro provides control of game and communication sound and allows intuitive switching between headphones and speakers freeing you from distractions for total immersion in your game. Additionally, a unique Chat Link feature allows the connection up to 8 GSX 1200 PROs together for hard-wired lag-free communication. Perfect for tournament play.