1, authentic products: official purchase channels, official shops, official authorized agents, etc. Generally speaking, genuine millet will have name identification, manufacturer name, IP name or logo, otherwise it may be in bulk.

2, piracy: look at the store name, the avatar is the store name, most of them are pirated. Look at the comments. Don't buy it if others rarely comment or some people say it's pirated. Anything that is too cheap may be fake.