This is a Acoustimass 10 series IV Bose sound system. Not used for very long, and in great condition. This system includes - includes an Acoustimass bass module, four Direct/Reflecting Cube speakers, and a center channel speaker. All wires and connections are accounted for and included. The Receiver is not. You must have your own to connect to. Pick-up only. Product Description The Bose Acoustimass 10 Series IV home entertainment speaker system brings 5.1-channel sound to your movies and music. Connect it to your home theater receiver and enjoy Bose quality sound. his system includes an Acoustimass bass module, four Direct/Reflecting Cube speakers, and a center channel speaker. The Acoustimass 10 Series IV speaker system is engineered to fill the room with beautiful sound, not bulky speakers. You can hide the Acoustimass module virtually anywhere in the room, and you experience dramatic sound that all seems to come from the small speaker arrays. Two downward-firing drivers in the Acoustimass module give you powerful performance for the lowest audible notes and effects. The module features technology that minimizes audible distortion. The horizontal center-channel speaker complements flat-panel TVs and blends nicely into your decor.