The Electro-Harmonix Nano POG gives you EHX's wildly popular and powerful polyphonic octave technology in a tidy, space-saving design. Boost up that sub to thicken guitar chords or fool yourself into thinking you're holding a bass, or kick the "Octave Up" control into gear to create convincing 12-string and synth-like sounds, all with impeccable tracking and no false notes or oddities.