The Joyo R-09 Vision Dual Modulation Guitar Pedal supports stereo input and output. Both of the two modulation effects have an independent SPEED/RATE, CONTROL, and DEPTH/MIX knobs. In the middle of the panel, a 3-position toggle switch is used for choosing the sequence of the two effects output. Each channel features 9 effects and you can adjust to get various tones with the independent Tap Tempo control.