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The Klipsch ProMedia 2.1 THX Speaker System includes a subwoofer and satellites designed for PC computers. With a 2.1 channel system configuration and THX surround sound formats, this portable speaker system delivers powerful audio performance. The sleek black cubes are made of plastic and offer wired connectivity with audio inputs for 3.5mm and AUX devices. With an RMS power of 200W, this Klipsch speaker system provides crystal clear sound for an immersive listening experience.