Can be powered by 6 x AA batteries or by your pedal board power system. Use the pedals to switch vocal effect (jazz, rock, echo, chorus, reverb, radio, etc.) while you perform. Use the phrase loop feature to create loops. Get a vocal harmony with the push of a pedal and up to 6 voices. Compact pedal measures 6.5 inches wide by 6 inches tall. Mono or stereo XLR output, headphones and line out, XLR or Speakon input. Phantom pre-amp is selectable. I'll include a microphone cable.