Water Resistant and no charging required. Lock and unlock your smart phone or tablet quickly, hide the app when you leave your smart phone alone.Control applications, you can write a fixed process list ahead of the time, and the ring will start the applications each time by simply touch.Share and transfer information, support all Android and Windows NFC mobiles.Multi-functional NFC smart ring, the main function is to store and exchange information, as well as mobile content and encryption unlock. Functions: set up smart lock, card recharge, smart phone unlock, phone important file lock, transfer files. Specifications: Material: Stainless steel Color: Black, Silver Size: 6, 7, 8, 9, 10, 11, 12, 13, 14 (please refer to the size picture) Transmission rate: 106kb/s Working frequency band: 13.56MHZ Storage space: 144BYTES Chip: NFC chip Product weight: 7g/0.2oz Package weight: 10g/0.3oz Package size: 3*3*2cm/1.1*1.1*0.7inch Note: Item color may show sight aberration due to different shooting light and monitor display. Package list: 1* Smart Ring
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