The MXR Dyna Comp M-102 is a compressor effects pedal that lets you set a maximum output level and the sensitivity at which it kicks in.
The MXR Dyna Comp M102 can produce that percussive, clicky sound on a clean guitar that you've heard on so many pop hits. It can also even out the volume of sustained tones for mellow lead work.
Product Details:
Power: Single 9-volt battery or Dunlop ECB-003 AC Adapter
Footswitch: Toggles effect on/bypass (red LED indicates on)
Output knob: Sets compressed (attenuated) output level
Sensitivity knob: Sets compression ratio (highest sensitivity is maximum compression)