Flamma FV04 Harmony, Harmonizer pedal for vocalists and guitarists; 12 pitches with 11 harmony modes, Mode, Key and Level knobs, “Sharp” LED button for semitone/vocal tone mode, Dedicated reverb effect designed for vocal, Includes guitar input with optional guitar reverb effects, balanced XLR input for microphones; Line in function supports signal from microphone amplifier or FV series pedals, Two different output modes for mixed signal or individual signal from guitar and microphone, power consumption 9V, 500mA; seperate power supply included; can optionally be powered by 48V phantom power, dimensions: 86mmx125mmx60mm