wearable smart device manufacturing; intelligent vehicle equipment manufacturing; smart home consumer equipment manufacturing; computer hardware and software and peripheral equipment manufacturing; audio equipment manufacturing; manufacturing of electronic components; navigation, surveying and mapping, meteorological and marine special instrument manufacturing; R&D of emerging energy technologies; R&D of household appliances; hardware product research and development; research and development of new material technology; domestic trade agency; sales of wearable smart devices; sales of intelligent on-board equipment; sales of smart home consumer devices; audio equipment sales; sales of household appliances; sales of home audio-visual equipment; technical services, technology development, technical consultation, technology exchange, technology transfer, technology promotion; import and export of goods; Technology import and export. (Except for projects subject to approval in accordance with the law, independently carry out business activities with a business license in accordance with the law) ^ None