1. Fine workmanship, beautiful design, stable performance and durability. 2. Ergonomic handle with non - slip concave - convex texture design, comfortable to hold and easy to use, which helps improve work efficiency. 3. Wireless design, with built - in ternary lithium polymer battery and a universal Type - C charging interface, economical and environmentally friendly. 4. Four - fold protection design, including over - current protection, voltage protection, over - temperature protection and charge - discharge protection. 5. Four - level torque adjustment with a one - key switch. Level 1 is 2.5 Nm, suitable for instrument maintenance; Level 2 is 3 Nm, suitable for model assembly; Level 3 is 3.5 Nm, suitable for furniture assembly; Level 4 is 5 Nm, suitable for pipeline and electrical installation. 6. Professional mechanical control. When the set value of the gear is reached, the mechanical clutch separates and slips, effectively preventing damage to screws or items caused by over - tightening. 7. Adjustable rotation direction design. You can adjust the rotation mode by pressing the forward button and the backward button. 8. Two working mode designs. You can choose the automatic mode and the manual mode according to your needs. 9. Equipped with an LED shadowless work light for all - round illumination, which is convenient for night use. 10. Different specifications are equipped with different numbers of screwdriver bits to meet all your needs and help you handle repair and fixing work. 11. Quick - change chuck for easy removal of screwdriver bits. The strong magnetic design makes the replacement fast and convenient. 12. Suitable for wood and plastic materials, used for tightening or loosening screws. 13. Widely applicable, suitable for the repair and maintenance of electronic products and precision instruments such as motorcycles, mobile phones and watches.