Features: Precision-Control: Its pen-shaped design makes it easy and convenient to handle, carry, and use for both home projects and professional repair work, providing precision-control and portable efficiency Efficient Heating: Achieve your desired temperatures quickly and easily with the 2.7V, 3.4V, and 4.2V efficient heating capabilities of this soldering iron kit. Equipped with a powerful 650mAh battery and three-speed adjustable voltage function, adjust the temperature to fit your various soldering needs with eases Upgrade Your Game: With an LED display, intelligent temperature control system and real-time monitoring of battery life and performance, our Soldering Iron Kit ensures the right temperature for precise workmanship Small and Lightweight: Small size, it is easy to carry and store; Wide Application: Ideal for home appliance repair, electronics, jewelry making, and other DIY projects that require precision-soldering. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Size: 102x13mm Package List: 1x USB Rechargeable Wireless Soldering Battery Pen