Radial Engineering VOCO-LOCO MK2 Vocal Effects SwitcherThe Voco Loco is an effects loop controller that enables an artist to add guitar effects pedals to a voice, sax, trumpet, or just about any other instrument you can think of. You connect the mic directly to the Voco Loco, set the level and EQ and then the Voco Loco sends the signal to the pedals via a standard " send & return effects loop. Separate send & return levels are used to optimize signal to noise and reduce distortion. A tone shift control