Pump up the volume with the Logitech Z506 Computer Speaker System. This state-of-the-art computer speaker system fills your home with 75-watts (RMS) of power, enough to rattle a couple windows if you"re so inclined. These surround-sound speakers wrap you in clear, rich sound, immersing you in the action of your favorite movies or the vibrations of your favorite tunes. Multiple inputs, plus 2-channel stereo sources, let you connect the Z506 system to your PC, game console, MP3 player, DVD player and more. The Z506 system includes 5 versatile black speakers, AC power adapter, power cord, speaker cable and owner"s manual. No batteries required. Plug-and-play technology allows you to start listening right away.