Creative A250 2.1 Multimedia Speaker System High Quality, Durable, 2.1CH Durable Design Energy Star Certified Creative DSE (Dual Slot Enclosure) incorporates a truly functional, conventional port tube within a tight enclosure improving frequency distribution of the whole system Improved IFP (Image Focusing Plate) features a flare surrounding the satellites to improve sonic directivity and imaging Small satellite foot print ensures easy placement options Custom tuned, down firing ported subwoofer for that oomph in your music Integrated On/Off switch with volume control for convenience