The expression pedal built into the pedalboard allows you to adjust the volume and modulate effects such as wah-wah, octave change and freeze live. It is also possible to adjust some of the effect parameters such as the degree of modulation and the delay oscillation. In addition, you can connect the ME-80 to your computer via USB for easy recording. The pedal also has a USB audio/MIDI interface with a Loopback feature that allows you to re-amplify your recording in the ME-80 with the best settings.