MXR Supercomp Compressor Pedal Features:

• Footswitch toggles Effect On/Bypass
• Output knob sets compressed (attenuated) output level
• Attack Level knob sets the attack attenuation level
• Sensitivity knob sets the compression ratio
• Power: Single 9-volt battery or Dunlop ECB-003 AC adapter (sold separately)
• Road-tough metal enclosure

Tech Specs

• Pedal Type:Compressor
• Analog/Digital:Analog
• Inputs:1 x 1/4"
• Outputs:1 x 1/4"
• Bypass Switching:True Hardwire
• Power Source:9V DC power supply (sold separately)
• Batteries:1 x 9V
• Power Usage:3.3mA
• Height:2.12" (including knobs)
• Width:2.62" (including jacks)
• Depth:4.37"
• Weight:0.84 lbs.