Check the listing for details. Beetronics FX Zzombee Filtremulator Analog Multi-effect Pedal. Condition: Very Good - Refurbished. Listed at 296.65 USD. A Cutting-edge Stompbox from Beyond the Grave The pedal gurus at Beetronics FX are no strangers to the wild world of stompbox innovation. That said, we really have to hand it to them: this particular pedal chucks the rulebook right out of the window. The Zzombee crams just about every effect imaginable into its compact enclosure that Beetronics FX proudly calls a “Filtremulator,” including fuzz, swells, tremolo, cross-tremolo, filter, randomized filter, wah, LFO, overdrive, and low octave. While it houses multiple effects, the Zzombee is not a “multi-effects” pedal in the traditional sense, and each element is finely tuned for simultaneous use with the others, resulting in a pedal that simply has no sonic precedent.