Diezel Columbus, midi footcontroller, 10 heavy duty program change footswitches, up/down switches for bankchange, shiny big blue LED display, to use with Diezel Herbert by regular XLR cable, also to to use as regular midi controller by midi cable, (cabels optional, e. g. article 213368 for Columbus interface or 129105 for MIDI), Not compatible with ENGL Amps!