Product Detail Creates up to four virtual overdubs of a performer's voice in real time and stores 10 preset style banks with 3 patches in each Additional effects include emulations of classic microshift, chorus and detune using the µMod (micromod) algorithm from VoicePro Edit controls allow adjustment of the Pitch and Time modulations as well as balance adjustment between "Overdub" style doubling and "µMod" style effects Access your two customized patches during performance with A/B parts XLR Mic level input and output connectors in stereo and mono . The "TC-Helicon VoiceTone Double, Double Tracker-in-a-Box, Including up to 4 Voices of Humanized Doubling and Octaves with Detune Effects" is best product for you. We recommended TC-Helicon VoiceTone Double, Double Tracker-in-a-Box, Including up to 4 Voices of Humanized Doubling and Octaves with Detune Effects