Mooer TOC1 Twin Series Tender Octaver Pro Professional Precise Octave PedalAfter listening to suggestions and request from the many artists who have enjoyed our previous octave effects, the "Tender Octaver Pro" from MOOER expands on the micro version, bringing together a whole host of cool new features and options with very easy to use controls. With these added features the "Tender Octaver Pro" becomes much more than just an octave pedal making it possible to do harmonization, pitch shifting, wammy and detune chorus