The Mercury Sub Woofer System SW8800 provides superior audio clarity, dynamic bass boost, high definition sound and 2.1 surround sound. The Mercury SW8800 also offers USB Input Support, SD Input Support, USB Play and FM Radio. Magnetically Shielded The Mercury Sub Woofer System SW 8800 is magnetically shielded, making it safe to use near video monitors. Multimedia Ready The SW 8800 thrusts you into the gaming experience and improves the sound quality of TV and movies. High Power for Your Good Music The low-frequency response produced by the front or top firing, long-throw woofer adds explosive bass to your home theatre experience! Excellent Frequency Response Mercury Sub-Woofer SW 8800 is engineered to reach an optimum balance of lows, mids and high, delivery audio clarity and strong bass. Low Distortion Circuit The SW 8800 features specially engineered drivers so you experience a full spectrum of pure, distinct sound Buy the Mercury Sub Woofer System SW8800 and get the free hurry while stock last!!!!!!!