Take context from the input text and decide on the accurate relationship between 'Barclaycard' and 'credit card' from the options provided.
Options: headquarters location, product/material produced, position held, brand

NEW YORK ( MainStreet ) –- This month Barclaycard , the leading credit card issuer in the U.K., released its full-scale launch of three smart payment devices that enable customers to pay without using cash or credit cards.
product/material produced