Singtrix Party Bundle Premium Edition Home Karaoke System - #SGTX1 Only karaoke system endorsed by celebrities & featured on hit shows: SharkTank, Ellen, The View, Today Show Greatest innovation to the singing experience since karaoke was invented. Only patented plug & play karaoke machine powered by live vocal effects technology once only available to the pros. Helps make bad singers sound good, good singers sound amazing! Designed to feel like a concert performance & sound like a recording studio. Over 300 effects. Covers every genre and generation of music. Offers 3 levels of enhancement from beginner to pro. Includes natural pitch-correction, HardTune(similar to Auto-Tune), 4-part harmonies and choir effects, fun voice-morphing, gender-bending and more..Can be Combined with 2nd Speaker System Custom Microphone with built-In "HIT" control activates harmonies and other effects at the touch of a button. Designed to make a chorus or bridge sound "larger-than-life". Works with the thousands of FREE YouTube karaoke & lyric videos, mp3 music, and apps from your smart phone, tablet or computer. Use an instrument in place of karaoke tracks. Sing in tune to chords played on a guitar or keyboard.