| 摘要 |
A method of conduction transactions at a point-of-sale terminal using a wireless device is disclosed and may include initiating a transaction with the point-of-sale terminal via a wireless link, receiving at least one price from the point-of-sale terminal, determining whether the at least one price satisfies a price warning condition, and transmitting a first audible signal if the at least one price satisfies the price warning condition. |
