Features: Press and hold the switch for more than 2 seconds to turn on the soldering iron and heat up and cool down quickly. Small and exquisite, light and easy to carry, easy to operate, convenient and practical. Fine quality stainless steel, will not rust, not easy to age, strong and practical. Fast heating, high / middle / low selection mode, tin melting within 15 seconds. Small head makes it perfect for SMD work and other small welding jobs. Auto sleep, automatic sleep for 10 minutes.