The pulsemonger mk1 converts any signal into two variable pulse waves. both pulse waves have internal width control via the width knobs, the on board triangular lfo, and/or the external cv inputs. you can shape the sound of your guitar to synth-like chorus effects, synth-muff fuzz, nasally fuzz, and much more!Controlstrue bypassinput - guitar, modular synth, toy, etc. plugs in here.output- this goes to your mixer or amplifier.pulsewidth cv a - stereo expression pedal input or mono cv input for the a channel width. voltage range is +/- 5vpulsewidth cv b - stereo expression pedal input or mono cv input for the b channel width. voltage range is +/- 5v9-vdc input - center negative 9vdc power adapter input.lfo modulation - controls the amount in which the triangular lfo modulates both channels. if this knob is fully ccw the rate knob have no effect on the sound.lfo rate -- controls the rate or speed of the lfo. .5hz-100hz about 1 cycle per 2 seconds to about 100 cycles per 1 second.pulsewidth a - fully ccw = 99% pulsewidth fully cw = 1% pulsewidth.pulsewidth b - fully ccw = 50% pulsewidth fully cw = 1% pulsewidth.volume - controls both channels level.true bypass - switch for true-bypass of the input signal. when the led is lit the effect is in use. when it is not lit the signal is bypassed.note - this product is not battery powered!Featurestrue bypassmxr sized enclosureboutique quality components9 volt, 2.1 mm, negative tip power jack (not included)No battery _gsrx_vers_420 (GS 6.0.8 (420))