DISC DigiTech Vocalist Live 3 Vocal Harmony Pedal at Gear4music
TC-Helicon VoiceTone Harmony M - Vocal Doubling and 996-000711
Cosmo Music
TC Helicon Harmony Singer | Bax Music
Electro Harmonix Voice Box – Thomann España
Amazon.com: BOSS VE-2 Vocal Echo Pedal for Singing Guitarists | Real-Time Vocal Harmonies and Effects | Create Harmonies with Manual Key Selection | Connect Guitar for Auto Harmony Function | 24 Harmony
DigiTech Vocalist Live Harmony - Vocal FX Processor Reviews | Sweetwater
Boss VE-20 Vocal Performer Pedal
DigiTech Vocalist Workstation EX Harmony Processor | Reverb