Brand: KKnoon This is a KKnoon rechargeable spot welder. It features 11-gear adjustment, automatic and manual modes, removable welding needles, and a built-in smart temperature detection system. Suitable for welding nickel sheets, iron, and stainless steel. I accidentally purchased two of the same item on Amazon the other day, so I am selling one. It's very convenient for portable spot welding of self-made electrodes, parts, equipment, and lithium battery contacts. It is a new, unused item and is about 30% cheaper than the same product on Amazon, so please consider it if you need one. There is no Japanese instruction manual, but it's easy to use as it can be operated automatically from startup. The accessories are as shown in the photos: English and Chinese instruction manuals, 2 spare electrode rods, approximately 2 meters of nickel sheet, sandpaper, and a USB charging cable. I have confirmed that the power turns on. Please note that I have taken it out of the box once for photography.