1, Bailu official website: You can find the official card of Bailu on official website and purchase it directly through the purchase link.
2. Authorized physical stores: Some brands will authorize some physical stores to sell genuine peripheral products. You can find out if there is an authorized physical store in the local area and buy it.
3. Official Weibo or WeChat official account: Bailu official Weibo or WeChat official account will sometimes post purchase links or activity information, and you can get a limited edition card by following and participating in the activity.