The Xiaomi Mi Electric Precision Screwdriver Kit features 24 Wiha Precision Bits made from imported S2 steel that also comes with a special anti-rust treatment that helps your kit last for a longer time making it extremely reliable. The screwdriver is powered by a strong magnetic motor that reaches a maximum speed of 170RPM. It also features two-speed precision torque adjustment modes for use with notebooks and electronics and more precise items such as mobile phones, watches and glasses. The bits are engineered to deliver super high precision for perfect usage. The imported S2 steel bits are tough and durable offering a hardness level of up to 60HRC, while the built-in rechargeable lithium battery is powerful and long-lasting, it can also process about 400+ precision screws on one full charge. The magnetic box helps hold all the screws in place so that they do not fall off. Now you never have to worry about losing the bits. Made from a high-precision one-piece moulding process, it features smooth round edges for a comfortable grip. Its sand-blasted surface also protects against moisture and corrosion. The Xiaomi Mi Electric Precision Screwdriver Kit meets most daily repair needs and is suitable for all conventional household appliances like quartz watches, laptops, cameras, radios, computers, mobile phones, drones, etc. You do not have to be a pro to use this product as fixing things with this kit is extremely easy.