The MidiVerb 4 is a flexible multi-effect processor with the ability to combine up to 3 effects simultaneously. Features: 256 factory presets and 128 user settings including reverbs, delays, chorus, flanging and pitch effects; comprehensive graphic editing system which lets you program your own effects and store them in memory; stereo or mono modes; auto level sensing inputs; unbalanced 1/4" I/O and MIDI I/O; assignable footswitch jack (footswitch not included).