Altec Lansing XM3120 Docking/Speaker System for Audiovox Express and Delphi Roady XT Compact XM radio speaker system designed for select XM receivers Built-in docking cradle fits XM Roady XT and Audiovox Xpress receivers Full-range, 2-inch neodymium drivers produce 80 Hz to 20 kHz response Digital bass enhancement technology; headphone jack for private listening Includes XM antenna with 20-foot cord; 1-year warranty