DESC: Polk Audio's I-Sonic™ is the all digital format entertainment system featuring - HD Radio with multicasting, DVD player, XM Satellite Radio & Sirius Satellite Radio capability*, iPod & MP3 Player Dock inputs and a high performance audio system in a convenient compact tabletop configuration. With an I-Sonic entertainment system you will be able to enjoy the widest range of music, movies, news, information and entertainment available today and tomorrow.