Patent ID: 7815108

Claim:
A transaction product comprising: an enclosure defining an aperture; an account identifier, which is at least one of connected to or enclosed within the enclosure, the account identifier linking the transaction product to an account or record, wherein the account identifier is machine readable, and the account or record is a financial account or financial record configured to maintain and track a monetary value available as tender toward the purchase of one or more of goods or services using the account identifier of the transaction product; an electrical circuit including a flexible circuit member, wherein the flexible circuit member extends through the aperture defined by the enclosure such that a first portion of the flexible circuit member is coupled to an outside surface of the enclosure and a second portion of the flexible circuit member is positioned inside the enclosure; and a piano interface defining a plurality of keys, wherein the piano interface is positioned such that interaction with one or more of the plurality of keys activates the electrical circuit to play one or more audible tones corresponding with the one or more keys.