The Electro-Harmonix Voice Box is a harmony machine and vocoder that packs a multi-functional vocal synth processor into a tough and compact chassis. Sing, and the Voice Box pedal gives you a troupe of backup singers following you in perfect harmony. Or use the built-in vocoder to unleash classic synth-robot sounds. The Voice Box's harmony processor creates 2- to 4-part harmonies directly from your vocals in the same key as your accompanying instrument. The Voice Box pedal's studio-quality reverb lets you independently add depth to your vocal harmony.
The focused 256-band articulate vocoder, designed by the same EMS genius who made vocoding famous, features adjustable harmonic enhancement and controllable formant shift.