Thank you for viewing. Note: The cooling duration only lasts about 3 hours when the level is set to maximum. It lasts a bit longer when the level is lowered. It can be used without any problems for those who work for a short time, but it may be difficult for those who are considering using it for a long time. Please consider purchasing with this in mind. I purchased it for about 10,000 yen, but due to these points, I am selling it at a significant discount. There are no defects in the cooling plate. The battery, charging cord, and all included items are present. There is no instruction manual.