Built with controls for sensitivity, width and attack and an up/down switch for the direction of the filter, the EMMA Electronic DiscumBOBulator is an evelope filter/auto wah capable of taking the effect further than ever before. Designed to articulately respond to even the fastest picking thanks to a proprietary circuit, the DiscumBOBulator brings a funky experimental tinge to guitar, bass, keyboard, or anything else you'd like to plug it into.