The provided information does not describe a vehicle, device, or machine. Instead, it refers to a product or service related to online selling. Therefore, it is not possible to provide a detailed introduction in Italian about a vehicle, device, or machine based on the given description.

The description suggests a course or program that teaches individuals how to sell products online. It mentions a "secret" method that allows users to sell "thousands of products from home" without significant investment. This approach highlights the potential to earn income remotely through e-commerce, a concept that has gained significant traction in recent years.

While the specific details of the product or service are not provided, the description focuses on the appeal of online selling as a means of generating income and achieving financial independence. It emphasizes the convenience and accessibility of working from home using a personal computer. The emphasis on "discovering a secret" suggests a unique methodology or approach to online selling that sets it apart from traditional methods.