1. Inquire about the purchase channel: If the product is purchased on an e-commerce platform or a physical store, you can find the product code on the order record or invoice of the platform or store.
2. Inquire in the product manual or packing box: Some products will mark the product code in the manual or packing box.
3. Query on the search engine: enter the product name or model on the search engine to query. You can find the product code information on the relevant product introduction page.