I haven't used this item even once since I bought it, and in fact, I haven't even taken it out of the box. However, I seem to have misplaced the warranty. I will send it in its unopened box. I hope that someone who understands this will purchase it. Please refrain from price negotiations. Reference Price: 6579 yen (Rakuten Ichiba) - Model Name: IH-S1400 - Power: 1400W - Type: Glass Top - Included: Instruction manual - Features: 5-level power adjustment, magnetic plug, safety sensor