mpo1The MPO1 Pure Octave Pedal may be small and compact, but it is loaded with versatile controls that can be used to create a whole range of different effects. With 11 different octave modes, the Pure Octave's sound can be selectedThe Mooer MPO1 Pure Octave Pedal offers a wide range of different octave effects in one tiny and compact unit. The Pure Octave provides players with 11 octaves modes to choose from,