Sony SRS-D4100 4.1 Multimedia and Gaming Speaker System Complete 5-piece (4.1-channel) multimedia speaker system with wired remote control module and all requisite cabling 4 satellite speakers with 2.2-inch drivers and 12 watts per channel 80-watt powered subwoofer with 6.3-inch cone 2 stereo analog line-level inputs let you connect a PC and 1 additional device such as an MP3, minidisc, or CD player 2 sound modes for input 1: 5.1-channel processing or direct stereo; headphone jack affords private listening