NIUNIU Product Description Nominal Voltage: 3.6V Manual/Auto Mode, Torque 0.12/3Nm Idle speed: 150 rpm Size: 200*95*23mm Purpose: Loosen the screw bit Size: 4*28mm(d*h) Screwdriver Bit Material: S2 Steel Package includes: 1 57 inch electric screwdriver 1 USB cable 1X magnetizer 1X magnetic pad 1 neutral box 1. Electric Screwdriver - This is a set of 57 pieces of electric screwdrivers (with storage box, 4 angles of magnetic mutual attraction.) Suitable for iPhone, Tablet, PC, Laptop, Clock, Camera, Game Console, Glasses, etc. Wait.. 2. Performance Improvement - This small screwdriver rotates at 150rpm, auto/manual mode, torque 0.25-0.35/3Nm, 2 hours of continuous work; equipped with 3 integrated LED work lights to provide visibility when working in dark or closed rooms. 3. High Quality Workmanship - Professionally choose 55 high-precision precision drill bits and 1 extension rod, different screwdriver bits with different specifications can easily meet different needs. All screwdriver bits are protected against rust.Each bit is labeled and magnetized in an assigned slot for easy identification. 4. Electric Screwdriver Design - Magnetic handle made of aluminum alloy, non-slip design with swivel cover for precise turning and control. - Metal body and smooth curves for comfortable grip. Quick change chucks make changing drill bits easier. The compactdesign, light weight and small size make it easy to take away. 5. Rechargeable Lithium Battery The included USB charging cable allows for quick and easy charging, and 3 LED lights are embedded to illuminate the work area.