1, developed by team, with patent certificate. However, the invention patent only represents a technical scheme and cannot prove its practicability.
2. There is no screenshot of the effect. This means that it is a kind of deception for merchants to promote products without mentioning the use effect and only emphasizing how good the products are.
3. The sales model is like pyramid selling. Worry-free so's sales model is described as pyramid selling, that is, selling products by developing offline and multi-level distribution will involve crimes.