Eventide H9 Harmonizer:
 
Introduced as a small footprint, incredible versatile multi-FX stompbox, the Eventide H9 Harmonizer is an incredibly intuitive device offering reverb, chorus, delay, modulation, and pitch-shifting effects, enabling guitarists to cut down on their pedalboard size, or to make room for specialized effects while maintaining their signature tone.
 
This pedal operates off a 12V DC center-positive power supply.