Free Express Shipping! TC-Helicon Harmony Singer 2 Vocal Harmony and Reverb FX Pedal Guitar-Controlled Vocal FX Stomp, Adds 1- to 2-Voice Harmonies and Reverb, 8 Harmony Styles, 3 Reverb Styles, Adaptive Tone for EQ, Dynamics, De-Essig, Harmony On/Off...