Welcome to our store! 1. [CIRCUIT DETECTION]: The rosin atomizer pen is designed to quickly detect short circuits on the motherboard and repair electronic components. 2. [COVER]: With a thickened cover, the smoke is thicker and less prone to breaking, allowing for clear observation of the atomization process. 3. [HIGH EFFICIENCY]: This pen-type detector offers fast and dense atomization without the need for long preheating, ensuring efficient and practical use. 4. [PORTABLE DESIGN]: With its ergonomic design, the pen-type detector is small, portable, and comfortable to hold. 5. [POWER]: Equipped with a USB cable and a built-in lithium battery, this atomizer pen is convenient for power and can be used anytime. Specification: - Item Type: Rosin Atomizer Pen - Material: Aluminum Alloy + Glass - Purpose: Used for detecting circuit board faults - Color: Silver - Model: K-S21 - Battery Type: Built-in lithium battery - Rated Battery Capacity: 650mAh Package List: - 1 x Rosin Atomizer Pen - 1 x USB Cable Note: The atomizer pen must be held vertically during use. Please allow minor errors due to manual measurement and different monitors. 100% satisfied: Our customers are our top priority. If you find any product issues after receiving the item, such as damage or incorrect quantity, please contact us immediately. We will do our best to provide you with satisfactory after-sales service. Thank you for shopping with us. We hope this information helps. Have a happy life!