Product Detail A complete signal path from mic input to stereo output. All you add is a PA, (or DAW) and your voice Capable of creating up to 5 part harmony or doubling with your voice Harmonies can be controlled by MIDI keyboard or by setting key and scale 100 user-programmable presets Editor program for Mac and PC available free via download . The "TC-Helicon VoiceWorks Vocal Effects Processors" is best product for you. We recommended TC-Helicon VoiceWorks Vocal Effects Processors