LOGICOOL Z623 THX Certified 3-Piece 2.1 200W Channel Multimedia Speaker System (Certified Refurbished) Certified Refurbished product is tested & certified by Logicool to work like-new. The product includes all original accessories, and is backed by a 90 Day warranty. Includes Subwoofer and two Satellite Speakers, THX certified Powerful 2.1 system, 200 watts (RMS) of power Multiple inputs for connecting to music, movie and gaming devices Integrated Power, Volume, and Bass controls