This is a high-quality that is small, lightweight and portable, easy to put in a pocket and carry around. 6-speed output power adjustable, 1-6-1 cycle, more precise welding. Copper pen holder with 10AWG silicone wire, humanized sleeve, safe to use. Equipped with high-speed lithium battery, thousands of points can be continuously welded on the 0.1-0.15mm nickel sheet after full charge. You can try it out.Features: Small, lightweight and portable, it's easy to put in your pocket and take anywhere. Easy to use, one-click on/off, very convenient. Fine workmanship, stable performance and long service life. Low-power design, you don't need to worry about running out of battery when shelving. 6-speed output power adjustable, 1-6-1 cycle, more precise welding. Press and hold to start, the last used file will be displayed, and a short press will add a file. Self-detection function, the welding pen will automatically trigger after touching the nickel sheet, and the response time is 0.8s. Advanced power management and software design, no reset and no zeroing during welding. Equipped with indicator light, flash charging, fully charged in standby. Comes with a charging management control module, which can easily charge your phone via the following USB cables. Equipped with high-speed lithium battery, thousands of points can be continuously welded on the 0.1-0.15mm nickel sheet after full charge. Copper pen holder with 10AWG silicone wire, humanized sleeve, safe to use. Specifications: Battery: 3.7v, 5300mAh battery Gears: 1-6 gears Welding thickness: 0.1-0.15mm Product Dimensions: 140 x 80 x 40mm / 5.51 x 3.15 x 1.57in Product Weight: 355g / 12.52oz Package includes: 1 x Spot Welder with Spot Welding Pen, 2 x Spot Welding Pen Holder, 1 x Nickel Sheet, 1 x USB Cable