The Bose 3-2-1 DVD home entertainment system offers superb sound, elegance, and simplicity in an advanced home-audio setup. The system comes with a central DVD/CD media center, a pair of shelf speakers, a powered Acoustimass module (subwoofer), and everything you need to hook it all up with ease. Using Bose proprietary signal-processing technology, the 3-2-1 system provides improved spaciousness from stereo recordings and bold movie effects from Dolby Digital surround-encoded materials. Yet its few parts require little labor to set up, so you can enjoy your new system's performance right away. The DVD/CD player plays your DVD-Video movies and CD-based music, including MP3 files written to recordable CD-R or CD-RW. Disc features include repeat and random play, DVD parental controls, forward and reverse chapter/track skip, and scanning within tracks. The supplied shelf speakers employ Bose's Articulated Array system with a patented driver configuration to provide clear, lifelike sound and an even sound coverage not always possible with conventional designs. This technology reduces acoustical dead spots and lets you hear the full frequency range of music and speech from small and unobtrusive speakers. In the Bose Acoustimass module, 2 downward-firing drivers give you powerful performance for the lowest audible notes and effects. And proprietary Bose technology ensures that you hear with clarity the proper balance of deep lows from all channels for music and movies. Hide the module almost anywhere, even behind furniture, and all the sound seems to come from the small cube speaker arrays. Other features include AM/FM tuning with 50 preset stations (25 FM, 25 AM), a sleep timer (1 to 90 minutes), and console input jacks for connecting other source components (such as a VCR, DSS, CD changer, or tape deck).