Answer: The product is the Credit card of Mastercard, it is a card offered by banks that allows you to pay in almost any place without using cash.
The advertising for this card is based on the slogan "priceless" and the phrase "There are certain things that money cannot buy, for anything else exists MasterCard". This slogan and phrase are used in memorable situations as the born of your first child, the food your mom's do when you are sad, sports celebrations etc.
I believe it is effective as the slogan "priceless" become part of the popular culture almost all around the world. Then, there is an strong brand recognition .