TC-Helicon Voicetone Mic Mechanic Vocal Effects Pedal, UsedThe TC Helicon Mic Mechanic is a compact, stomp-box-style vocal processor designed to give live singers studio-quality polish with a simple, analog-style user interface. The Modern Vocalist World
Key Features

• Reverb & Echo: Offers multiple reverb styles (such as room, club, and hall) and echo options (tap tempo enabled) that can be blended with a dry/wet control knob. 
• Auto-Chromatic Pitch Correction: Smooths out intonation transparently or can be dialed up for a stronger tuning effect. 
• Adaptive Tone: Features a "Tone" button that automatically applies live EQ, compression, de-essing, and gating to keep vocals clear and present. 
• Remote Mic Control: Compatible with specialized microphones (like the TC Helicon MP-75 or MP-76) so you can turn effects on and off directly from a switch on your mic. 
• Power Options: Can run on power supplies or batteries depending on the specific generation (such as AA batteries or a 9V adapter on newer versions)