| 摘要 |
A navigation device with interactive map shown on a touch screen for shoppers, preferably attached to a trolley's handle bar to guide the shopper to specific items. The device preferably also displays games, advertisements and nutritional information about products on the screen. Preferably, there is also attached to the trolley a barcode scanner and EPOS machine/card reader so that the shopper can avoid queues. A further preferable feature is a machine to print out a receipt for the shopper and send a copy of the receipt via e-mail.
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