This portable spot welder is designed for cylindrical batteries and electronic devices. It features 90 adjustable gears, a high-density aluminum alloy shell for excellent heat dissipation, and a 3-inch LCD display for easy adjustment and monitoring. The welder is lightweight and compact, making it easy to carry around for on-the-go repairs and projects. The package includes a spot welding machine body, power cord, welding sheet, sandpaper, instruction manual, and packing box.