Sony Muteki 550 watts Hi-Fi Stereo Monster Sound System with 3 Disc CD Changer, 3 way Hybrid Bass-Reflex Dual Woofer Speakers, Z-GROOVE Bass Boost, 8&rdquo; Sub Woofer, Programmable Play Timer, Sleep Timer, Mic Line-In for Karaoke sing-along, 2 USB Ports for Flash Drive, MP3 BOOSTER+ Enhancer, Aux Line-In for iPod MP3 or Cassette Tape Players, AM/FM Tuner with 30 Presets, 8 Preset Equalizers & Remote Control