The Companion 3 Series II Multimedia Speaker System from Bose is a 2.1 channel speaker system with a powerful 5.25" Acoustimass subwoofer. The satellite speakers come preassembled on their stands and are powered by 2" drivers to give your music and gaming a rich sound. A wired control pod is included to let you control the volume for your computer. These features make the speakers an excellent choice to handle audio output for your computer.