Electro-harmonix Pitch Fork Polyphonic Pitch Shifter Features:

• A pitch shifting pedal with a +/- three octave range
• Glitch-free tracking, even when you're playing your fastest
• Hook up an expression pedal for real-time pitch shifting or glissando
• Dry volume control lets you blend in your original signal for harmony effects
• Latch or momentary modes affect the footswitch and expression pedal
• Buffered bypass for maximum signal path integrity
• Powered by 9V battery or the included 9.6DC-200 power supply