Condition: Functionality confirmed. AC adapter not included. Operational with dry cell batteries or nickel-metal hydride batteries; no issues. Instruction manual and box included. *The box is in poor condition. See photos 7 and 8. Purchase date: January 2006 Usage period: January 2006 to around 2023, used a few times a year, at home only. Product Information: This is a ZOOM effects pedal (G2.1u) sold in the 2000s. This item includes a multi-language manual, a startup guide, a patch list, a manual ROM, and a charger. The main power source for this item is four AA batteries. *Reference (Relevant product company URL) https://www.zoom.co.jp/ja/products/guitar-bass-effects/guitar/g21u-guitar-effects-pedal