The TC Helicon Duplicator is a device that allows for easy double tracking of your vocals. Simply plug in your microphone of choice and adjust the doubling effect from "loose" to "tight" to "octave" to dial in a range of various styles that all serve to expand and enhance the timbre of your voice. The Duplicator also incorporates onboard reverb, pitch correction, and a general tone-enhancing engine under the hood that automatically applies EQ, de-essing, and compression to whatever vocal you run into this simple and effective vocal effect box.