Electro-Harmonix HOG2 Guitar Octave Effect Pedal<div style="text-align: left;"><strong>[Product Information]</strong><ul><li><span class="a-list-item"> Sophisticated new algorithms to improve the quality of the ten generated octaves and harmonics as well as the Freeze function; Foot controller sold separately </span></li><li><span class="a-list-item"> Full MIDI control over all parameters and presets </span></li><li><span class="a-list-item"> Master Volume for added control and convenience; Volume levels are saved as part of a preset </span></li><li><span class="a-list-item"> Save and recall up to 100 preset programs with the optional foot controller (versus six with the original HOG) </span></li><li><span class="a-list-item"> Controllable harmonic intervals: -2 octaves， -1 octave， original note， +5th， +1 octave， +1 octave +5th， +2 octaves， +2 octaves +3rd， +3 octaves， + 4 octaves </span></li></ul></div><img src="http://ecx.images-amazon.com/images/I/51SSAO7sy2L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/51pGuAKFeRL.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/01G2aSYe7yS.png" noproxy>