Convenient & Integrated Design: Spot welder that does not require spot welding pens which makes it portable and easy to carry. Encompasses the power source and welding pen into a single device, allowing superior accessibility whenever desired. Say goodbye to those external welding pens. Adaptive Power Output: With its 80 adjustable gears, adapt to your specific welding requirements. Perfect for 0.1mm nickel strips between gears 25-45, 0.12-0.15mm strips within 46-69 gears, and 0.2mm strips in 70-80 gears. Simply charge once to spot weld for 800 times. Visible & Latest LED Display: Equipped with a remarkable OLED color display that exhibits detailed information- the operation mode, remaining power, preheat status, required delay, welding progress, and gear level, ensuring you're vigilantly updated about the device's functionality. Safety Focused Design: Encased in a high density, heat-dissipating aluminum alloy shell. Ensures excellent heat dissipation to avoid overheating, with protection against overcharging, short circuits, and excessive temperatures. Auto-off function will kick in after 6 minutes of non-activity to further user safety. Effortless Operation: Designed with a user-friendly interface making it easy to understand and operate. Power button for opening and closing, and gear addition/reduction buttons to dictate preheat or delay timings. Compatible with 5V 2A charging via Type-C port, with a clear charging indicator. Perfect for 18650/32650 cylindrical batteries, mobile phone batteries, and battery-dependent electronic devices. Colour:Black Material:Aluminum alloy Package Contents: 1 * Handheld spot welding machine 1 * Charging cable 1 * 2m Nickel sheet 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.