From Oneder Effects:

An overdrive with personality. The ONEDER DRIVE is a simple, yet versatile pedal that can be used as a mid-heavy boost at its tamest, or a fuzzy distortion with unparalleled note clarity at its most extreme. The clipping switch toggles between heavy, hairy op-amp clipping and a unique diode clipping configuration that compresses the low end, sizzle, and gain in a vintage way. The badge artwork should help you channel all of the things that give Michigan's Oneder Studios its tonal mojo. The Oneder Drive isn't based on anything in particular, but was a happy accident resulting from trying to develop a circuit almost exclusively by ear. Any amp will benefit from the mid bump this drive imparts (no tone knob, sorry not sorry), turning small combos into stacks and high gain amps into machines that cut through any mix. Requires a standard 9v center negative 2.1 barrel connector power supply (not included.) Isolated DC power supply recommended. No battery snap