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Concept of Smart Ring replaces wallet

Smart Ring Kerv could replace wallet with cash and credit cards. Author of the project positioning a gadget,as is the world's first ring for contactless payments. The ring is made of waterproof durable scratch-resistant material of which produced dental crowns, and do not require recharging. Kerv works on technology NFC. The owner of the gadget will be able to carry out payment of up to $ 46 - pay...


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