The three-piece BXR1121 system features the most power in its class. It lets you enhance your listening enjoyment and get the full spectrum of sound. Two separate satellite speakers improve perception of both gaming action and Stereo recordings. The ported wood Subwoofer adds a new level in gaming realism. Treble and Bass controls and AUX Input are built in. MP3 player cradle included. Quality stereo Gaming, Music or moviesyour PC will come aliveAltec Lansing BXR1121