PRODUCT DESCRIPTION : Logitech Z-Cinema 2.1 Speaker System INCLUDES : 2 satellite speakers, Subwoofer, Remote control POWER : 180 Watts Total RMS CONNECTOR : Auxiliary Input, Headphone jack DIMENSION (H x W x D) : Speaker - 250 x 115 x 113 mm Subwoofer - 292 x 291 x 414 mm SYS REQ : Intel Pentium or equivalent processor; 256MB RAM; 20MB of available hard disk space; USB port OS : Win XP Media Center Edition or Win Vista Home Premium or Ultimate; Win Media Center required for complete remote functionality * SRS TruSurround HD * Hybrid Class D + Class AB Tri-Amplifier * 2 X 2.54cm/ 1" Textile Dome Tweeter; 2 X 7.62cm/ 3" Ventilated Midwoofer, 20.32cm/ 8" Long-Throw Subwoofer * 24-Bit USB Digital Audio * 180W advanced surround sound system * Immersive surround sound without rear speakers * High-power, high-performance audio for a natural, balanced sound * Incredible frequency response, detail and clarity * Powerful, distortion-free bass * Pure USB digital fidelity