Varimolo is an excellent digital tremolo pedal provided to guitarists. Like other Mooer Micro series pedals, Varimolo has a mini size while at the same time a great tone. RATE/SHAPE/DEPTH knobs provide a great variety of adjustment options to NORMAL/FILTER/VARIABLE tremolo modes. The SHAPE knob can adjust the LFO wave shape from triangle to square. With RATE/DEPTH knobs, you can get a warm and smooth vintage tube sounding tremolo effect, a wild and intensive tremolo effect or even a kill switch