Synertone Communication Corporation, together with its subsidiaries, engages in the research, development, manufacturing, and sale of mobile satellite communication systems in Hong Kong, China, Macau, and internationally. The company operates through four segments: Building Intelligence, Control System, Data Centre, and Smartphone Distribution. It offers Synertone 1, a broadband satellite that provides high throughput satellite resources and services; and ground satellite products, including mobile and fixed network elements. The company is also involved in the research, design, development, manufacturing, and sale of intelligent systems, such as video intercom and surveillance systems for residential homes and buildings, as well as smart home automation systems for new and existing households; design, development, and sale of automation hardware and software products, information systems platforms, and industrial and monitoring and scheduling management system solutions; rental, maintenance, other related services to computer equipment and machines, as well as information technology infrastructure and platform and robot; and distribution of smartphones under the Xiaomi brand, ecosystem products, and related equipment. Its products are used in railway, shipping, education, oil and gas, healthcare, LTE backhaul, rural connectivity, emergency, and fire surveillance industries. The company was founded in 2001 and is headquartered in Tsim Sha Tsui, Hong Kong.