Although all these points may be helpful to sell, the prospect is first of all interested in your product. Therefore please remember always the following rule of thumb. People buy only on benefits a product offers, not on features. Benefits are effects that help improve the life of your prospective customer. Therefore it is important that you know the key benefit of your product or service.
Features are things the product can do.
It does this and that. My product sells itself. If you want sell, that's the wrong way. Good feeling and to solve a problem. Please, think a moment about your own buying behaviors.