AC/DC/Rechargeable Battery Compatible Fan-Equipped Cordless Cooler/Warmer (Excellent Condition) - Brand: HiKOKI - Model Name: UL 18DA (XM) - Power Source: AC/DC/HiKOKI Rechargeable Battery - Internal Structure: Insulated - Cooling Function: Fan-equipped (Additional Information) As the instruction manual was missing, I downloaded it from the manufacturer's website and have included it. (Note) As shown in the 9th image, the AC 100V power transformer's plug-in part is deformed. For safe use (to prevent fire, etc.), please consider replacing it. Thank you for viewing.