Xiaomi Group is a Chinese investment holding company mainly engaged in the research and development, sales, and provision of internet services of smart phones, IoT, and lifestyle consumer products, as well as investment. The company mainly operates through four departments: the smart phone department mainly engages in the sales of smart phones; the IoT and lifestyle consumer products department mainly sells other self-produced products (including smart TVs, laptops, AI speakers, and smart routers), eco-chain products (including IoT and other smart hardware products), and some lifestyle consumer products. The internet services department provides advertising services and internet value-added services. The other department provides hardware product maintenance services. The company sells its products in both domestic and overseas markets.