The Maxon OOD9 Organic Overdrive is an updated version of Vintage OD880, one of the last of the classic overdrives. At the heart of the OOD9 is the JRC4558 IC Chip; amazingly transparent, dynamic overdrive with no compression and true bypass switching. For those who don't know, Maxon was the company who made all of the original Ibanez pedals, such as the 808 Tubescreamer. This pedal is in good cosmetic condition, and functions as it should. Powered by a standard 9 volt power supply, or a 9 volt battery.