MXR Uni-Vibe Chorus/Vibrato*Legendary effect in a smaller housing *Chorus mode sounds rich, lush *Vibrato delivers a deep, shimmering texture *True bypass switchingThe Uni Vibe Chorus Vibrato is one of the most iconic effects in music history. The MXR Uni Vibe delivers the same chewy, Leslie sounding goodness as the original along with a few modern conveniences such as true bypass switching and a much smaller footprint.