After launching first in Japan on July 15th, Apple has brought its iTunes Pass functionality to the United States. The feature allows you to store iTunes Store credit on a digital gift card in Passbook that can reloaded by an Apple retail employee in-store.

Here’s an explanation of how it works from Apple:

Apple has launched a new service called iTunes Pass in several countries, including Japan, Brazil and China.

The service lets customers buy iTunes Store credit from brick-and-mortar Apple retail stores — only using Passbook, rather than the physical gift cards most commonly used. The service appears to work by letting users add a new iTunes Pass inside the Passbook app, which they can then present at their local Apple Store. The user then states how much money they would like to turn into iTunes Store credit, and this is instantly transferred to their account.