General business items are: Sales of electronic products; Sales of intelligent unmanned aerial vehicles; Sales of clocks and timing instruments; Sales of audio equipment; Sales of smart home consumer equipment; Retail of photographic equipment and telescopes; (Except for projects that are subject to approval according to law, business activities can be carried out independently according to the law with a business license), and the licensed business projects are: Import and export of goods; Import and export of technology; Import and export agency. (Projects subject to approval according to law can only be operated after being approved by the relevant department. The specific business project is subject to the approval document or license of the relevant department