Specifications:- Rotating speed: 200r/min- Torque: 0.15/3Nm- Screw pits size: 4 x 28mm, 4 x 45mm- Battery: 1 x 3.7V 280mAh NSC1040 battery (built-in)- Product weight (electric screwdriver): 0.054 kgWarm Tip:When resistance to unscrewing the stubborn screw is met, slight shaking the screwdriver and hold the power button to increase torque Features:- Complete aluminum body, oxidation-resistance and comfortable to hold in hand- Wireless design, power by the rechargeable lithium-ion battery- Rotate speed in 200r/min, safe and high effect- Comes with a storage box for easy carry and store screwdriver accessories- Suitable for the quartz watch, regular household appliances such as cameras, radios, computers, mobile phones, drones, etc., meeting the most daily repair needs