Used Stax Harmonizer Pitch Shifter

No box or manual.  

 Original signal to create, precise polyphonic pitch shifting with 44.1k 24bit sampling, 32 bit true floating point DSP, with storage of timbre sound pedal ±2 Oct Pitch Range (16 optional parameters)

Specifications:

•   Input: 1/4” monaural jack (impedance: 470k Ohms)
•   Output: 1/4” monaural jack (impedance: 100 Ohms)
•   Power Requirements:  9V DC adapter(center minus plug)
•   Current Draw: 128 mA
•   Dimensions: 95mm (D) × 45mm (W) × 53mm (H)