Unboxing

The appeal is anticipation and vicarious purchase. Someone deciding whether to buy gets to see what actually turns up, in what condition, with what included, before committing any money. That makes the format reliably searchable, since the query is usually a product name plus the word unboxing, and it makes it attractive to brands, which is where disclosure obligations begin. Any item supplied free or paid for counts as a material connection and has to be declared.