The advanced VE-500 Vocal Performer provides everything you need to achieve impressive vocal harmonies and effects on stage, and all in streamlined stompbox that integrates seamlessly with the regular guitar effects on your pedalboard. Automatic vocal harmony/pitch correction powered by newly enhanced BOSS algorithms for natural sound with smooth tracking Class-leading sound quality and high-powered BOSS DSP engine for processing vocals with up to nine effects at once Extensive selection of effects specially tuned for vocals; Enhance section for shaping core tone, plus reverb, delay, modulation, distortion, EQ, filter, and many other types for further processing Versatile and creative vocoder effect for generating electronic voice and talk box sounds based on guitar input Flexible effect routing options for processing live and harmonized vocals together or separately Dedicated looper Guitar input for harmony, pitch, and vocoder processing; Thru output for sending unprocessed signal to guitar pedals Three assignable footswitches for real-time performance control, plus support for up to two external footswitches or an expression pedal MIDI input and USB-MIDI for guiding harmony/pitch engine from an external MIDI keyboard or DAW backing tracks