The OD Glove Overdrive/Distortion Pedal from Electro-Harmonix features a versatile modern overdrive/distortion unit in a compact nano enclosure. The OD Glove is capable of chunky high-gain distortion, sweet overdrive, mild crunch, and even powerful clean-boost. An easy to use but powerful tone control helps you dial in the right sound. True bypass switching keeps your original clean tone intact. This pedal features three knobs. The Gain knob controls the amount of input gain and overdrive. The Tone knob filters out high frequencies. The Volume knob sets the output level of the pedal. The OD Glove includes an internal slide switch to change its internal power supply voltage from 9 to 18V.