The Electro Harmonix Pitch Fork Polyphonic Synthesizer-Generator transposes an instrument's pitch over a three octave range and features three modes which allow the pitch to be transposed up, down or both, simultaneously.Β There is a blend knob which controls the mix of the dry signal and the effected signal.Β The Pitch Fork comes equipped with an EHX 9.6DC 200mA power supply and also runs on a 9 Volt Battery. Get yours today at Georgeβs Music!