Sharper Image SA251TNM - Subwoofer - 20 Watt<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Comes with 5-foot power cord and 5-foot subwoofer cable.</li><li>Subwoofer's slim 6.25" profile makes it easy to stow behind a couch or chair.</li><li>Universal (speaker level) input for systems without subwoofer outputs.</li><li>20 watts RMS， 40 watts peak.</li><li>Down-firing bass reflex design for slow distortion and extended low frequency response.</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41DML9DkPlL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41ptWmS3n6L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41-8I3sgsLL.jpg" noproxy>