Feature: 1. Electric screwdriver kit, with hex chuck, the maximum screw diameter is M4. 2. Support two‑way rotation, help to quickly remove and install screws, easy to use. 3. The maximum torsion of manual is 10N, and the maximum torsion of electric is 1.5N. 4. With circuit protection, it supports overcharge, overdischarge, undervoltage, and overload protection for 1 second. 5. Red and green dual LED lights, charging indicator (when charging), battery indicator (red and green switching), undervoltage alarm flashing for 3s (when switch is pressed). Specification: Item Type: Screwdriver Material: Steel Weight: Approx. 219g / 7.7oz Size: Approx. 13.5x3.5cm / 5.3x1.4in Power Type: Rechargeable-Lithium Battery Technology Battery (Built-In Battery): Lithium Battery, 18650, 800mAh Maximum Torsion: 10 Nm Scope of Application: Home and Garden Tools Power Supply Voltage: 3.6V Charging Interface: Type-C Type: Screwdriver Rotation: 2-Way Handle Type: Straight Rod Type Maximum Screw Diameter: M4 Drive Shaft/Chuck: Hex. Package List: 1 x Screwdriver Host1 x Slotted Bit1 x Crossed Bit1 x USB Cable1 x Rope Note: 1. Please allow 0‑1 inch error due to manual measurement. Thanks for your understanding.2. Monitors are not calibrated same, item color displayed in photos may be showing slightly different from the real object. Please take the real one as standard.