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As shown in the figure is a conceptual design of an electronic wallet called eWallet. It has built-in WIFI and RFID wireless connection modes, which can synchronize shopping systems in consumer places such as stores or restaurants to select and allocate products, and has a built-in simulator to display the selection results, such as when buying clothes. It not only has a note signature bar to confirm purchases and other operations, but also has a dual-screen keyboard to facilitate user input and selection.
I believe that in the future, everyone will have an electronic wallet, or they will all use online shopping.
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