Sales is about not only selling your product but it is also about selling yourself. A salesman could have the best product in the world but still not be able to sell it, but a good salesman could take any product and sell it just based on their ability to connect and communicate with potential buyers. So as long as you are good at conveying information about your product and understanding your customers needs then all the rest just comes down to how you and your potential buyer connecting on a more personal level (i.e conversation).