Thank you for viewing. Gas rice cooker Rinnai RR-S100GS Cooling This item was stored by a family member, so the purchase date is unknown. I do not have any knowledge about the item, so I cannot provide detailed explanations. Please research the functions, etc., using the model number. Adjusted from 13A to LPG on H23.4 Only those who understand the item and can accept home storage, please. The included batteries were old, so please prepare them yourself. I will ship the item with the shipping label attached directly to the outer box.