1. Material: This USB soldering iron is compact in size, comfortable to grip, portable, and convenient to use. The metal housing has hardness and long durability, suitable for longterm use. 2. Fast Warming: The plugandplay design of the soldering tip enables fast heat conduction, oxidation resistance, and long lifespan. The integrated design of the soldering tip and heating element allows the temperature to rise quickly, the solder to warm up quickly, and the heating element to be replaced conveniently. 3. 3Gear Temperature Adjustment: Upgraded NT chip, three adjustable temperatures: 300340 C low, 380400 C medium, 380450 C . Long press the button for three seconds to turn on the device; the maximum temperature can reach 450 C. 4. Battery & Convenient Charging: Builtin 800 mAh capacity lithium battery, about 20 minutes of stable battery endurance. With a TypeC charging interface, charging is faster and more convenient, with multiple power supply options, can be connected to a computer USB port, power banks, etc. With the dualcolor charging indicator, red indicates charging in progress, and green indicates charging completed. Practical applications: Electronics and small PCB work, such as replacing components or patching wires. DIY electronics and hobby projects, including assembling small devices and sensors. Quick field maintenance or repairs of small gadgets and household electronics.