This is a brand new, unused item. This is a clone effects pedal that replicates the circuit and switch functions of the original Fulltone OCD in an ultra-compact size. The original has been discontinued, so if you're looking for one, don't miss out!! It can be used as a gain boost for a crunch sound amp or as a light overdrive for a clean amp. As a low-gain overdrive pedal, it's a versatile type that can be used for any genre! Controls: Gain, Level, Tone, Toggle Switch True Bypass Power: 9V center negative Size: Approx. 9x5x3.5 cm Weight: Approx. 150g LED Light: The LED indicator shows the operating status. Full metal shell with aluminum alloy stoving varnish finish.