The VCR has three different one knob controls for the effects: Volume, Chorus, and Reverb. Each effect is engaged by a toggle below the knob, and the master on/off is the footswitch. The Volume is a simple boost that can be used to give you more volume or send your amp into breakup, perfect for low wattage amplifiers. The Chorus is a classic swirling 80s style chorus. When increasing the Chorus control the speed increases while the depth decreases, and when decreasing it the speed decreases and the depth increases. The Reverb is a hall reverb that is perfect for adding that 80s style decay to your sound. The Reverb knob controls your reverb mix, from fully dry to fully wet. All these combined will have you screaming “Friday, I’m in love” in no time.