Electro-Harmonix East River Drive is a guitar pedal designed to produce sound modulations by applying effects such as Overdrive. To provide the musicians with an option to control the desired aspects of their instrument's tone, this model is equipped with the following controls: Drive, Tone, Vol, Bypass. The guitar effect pedal features 1/4" Jack input, 1/4" Jack output connectors and uses AC Adapter/Battery power supply.