The Bose Companion 5 speaker system brings the brilliance of surround sound to your computer using just two speakers. Its specially designed speakers produce fantastically clean & clear audio, & using Bose's innovative True Space technology these speakers are able to produce a virtual 5.1 surround sound, bringing your videos & games to life. A compact Acoustimass module provides brilliantly clean bass tones, complementing the 2 speakers while its compact frame contains most of the electrical components meaning the speakers can be much slimmer & smaller without sacrificing quality. Its single USB (Universal Serial Bus) connection means the system is also plug & play, this means no software is required to be installed on your computer for the speakers to work, just plug them in & away you go. A control pod gives you the ability to change volume & connect inputs quickly & easily.