The Mooer Pitch Box MPS1 is a triple mode micro pedal pitch shifter. Mode 1 lets you create non-intelligent harmonies, mode 2 shifts your whole signal up or down by a set amount and mode 3 is a detune effect for a rich chorus.

3 Effects Modes: Harmony, Pitch Shift, Detune
Harmony: It shifts the pitch and mixes it back with the original signal to create a rich harmonic voice.
Pitch Shift: Outputs a precise polyphonic pitch shifting voice.
Detune: It slightly shifts the pitch and mixes it back with the original signal to create a chorus-like effect, it rings a lot of nice spacy feeling.
Precise polyphonic pitch shifting
±2 Oct Pitch Range (16 optional parameters)
Full metal shell
Very small and exquisite
True bypass
DC 9V Adapter power supply
Effects Modes: 3 (Harmony, Pitch Shift, Detune)
Input: 1/4” monaural jack (impedance: 470k Ohms)
Output: 1/4” monaural jack (impedance: 100 Ohms)
Power Requirements: AC adapter 9V DC (center minus plug)
Current Draw: 128 mA
Dimensions: 93.5mm (D) × 42mm (W) × 52mm (H)
Weight: 170g