Electro-Harmonix Operation Overlord Allied Overdrive pedal with normal and boost modes to add distortion from mild to saturated tones.

• Overdrive/Boost
• Originally designed as an overdrive pedal for keyboards, guitarists quickly recognized that this FET-based overdrive offers a tube amp sound and response that they also know how to appreciate
• Controls: Vol, Treble, Mid, Bass, Dry, Boost & Gain
• Switches: Input Level Hi/Norm/Lo
• Stereo input and output
• Boost, True Bypass with footswitch
• Power consumption: 90mA
• 9V battery or 9V DC power supply with coaxial connector and center-negative polarity (included)
• Dimensions (W x D x H): 102 x 121 x 57 mm