Top recording studios worldwide use Eventide effects on hit after hit. The Eventide PitchFactor Guitar Effects Pedal, Harmonizer includes Eventide's best pitch-changing effects from the past 36 years without compromising quality OR flexibility.
Plug-and-play expression pedal control of wet/dry mix or any combination of parameters. Control program changes and vary parameters continuously via MIDI. Supports instrument or line level inputs and outputs. Plays well with others; adapts seamlessly with a wide variety of amps and other foot pedals.
The Eventide PitchFactor Guitar Effects Pedal, Harmonizer main features include:
Up to 4 voices of diatonic pitch shifting and up to 1.5 seconds of stereo delay
Studio quality sound
Guitar or bass compatible
Built-in Tuner
Software upgradeable via USB 2.0
MIDI control via USB or MIDI in, out/thru
Instant program change
Real-time control with 10 knobs, MIDI, or expression pedal
Tap tempo and MIDI clock sync
100 factory presets, unlimited through MIDI
True analog bypass
Rugged cast metal construction
Reliable metal footswitches for instant preset access
Mono or stereo operation
Guitar or line level inputs and outputs
10 of Eventide’s signature stereo or mono pitch+delay effects:
Gamechanger Audio Bigsby Pedal
Meris Ottobit Jr.
Strymon Mobius Modulation Guitar Effec ts Pedal 
Keeley Dark Side
DigiTech Whammy DT