TC Helicon Voicetone C1VOICETONE C1 Simple 1 Button Stompbox for Flexible Pitch Correction Simple single button stompbox gives you flexible pitch correction choices to control your sound Gentle or aggressive tuning puts your voice right on pitch Manual or guitar controlled key scale selection Wide range of pitch correction capability, from natural to robotic Simple 3 knob control gets you up and running in seconds High quality, low noise mic preamp for pristine vocals On