High Precision CNC Spot Welder: Equipped with a 1.8-inch true color LCD screen, real-time display of welding parameters, battery voltage, and temperature for precise control. Fast Charging & Dual Functionality: 2.1A fast charging supports quick power input, while USB 5V/2.4A output allows use as a portable power bank when not welding. Adjustable Welding Parameters: Supports 0.1-0.25mm nickel strip welding, customizable preheat, gap, and pulse settings, ensuring strong, reliable welds. Solid Copper Welding Pen: High-quality 8AWG pure copper welding pen, 50,000 life cycle tests, ergonomic grip, and heat-resistant insulation for safe and efficient welding. Smart Protection & Battery Safety: Built-in low power protection, automatic shut-off function, and overheat prevention ensure long-term stability and battery safety. Note: due to different production batches, the printed words on the products are different. Colour:Black Material:ABS Package Contents: 1 * spot welding machine 2 * spot welding pen Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.