Features: 1. Lightweight design: Small in size, lightweight, easy to carry, suitable for mobile work environments. 2.USB power supply: It can be powered through a USB interface and is compatible with various devices such as computers, power banks, and car chargers, with a wide range of application scenarios. 3.2-in-1 design: Welding machine+welding pen 2-in-1 integrated spot welding machine, freeing both hands and achieving convenient one handed welding. 4.Scientific needle changing design: The welding needle can be disassembled and replaced, the welding spacing can be adjusted, and the aluminum alloy arc-shaped shell is used to make the body sturdy. 5.Equipped with clear indicator lights: gear, battery, and mode settings are clear and intuitive. 6. Widely used: Suitable for electronic maintenance, battery pack production, hardware equipment maintenance, mobile phone cell transplantation, manual DIY, etc.