The PitchFactor Harmonizer pedal gives you Eventide"s 10 best pitch-changing effects from the past 36 years without compromising quality or flexibility. This plug-and-play expression pedal gives you control over the wet/dry mix or any combination of parameters. Control program changes and vary parameters continuously via MIDI. The Pitchfactor Harmonizer supports instrument or line-level inputs and outputs. The Eventide PitchFactor plays well with others and adapts seamlessly with a wide variety of amps and other foot pedals. The Eventide PitchFactor Harmonizer Pedal is also easy to upgradeyou can download new software from the internet and install via USB.10 of Eventide"s signature stereo or mono pitch and delay effects: Diatonic PitchFlex Quadravox Octaver HarModulator Crystals MicroPitch HarPeggiator H910 / H949 Synthonizer 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