Sell R4 Smart Ring For Men NFC Ring Compatible Magic Ring Simulate IC ID Cards best price

Features: -No need to charge: R4 is driven by the wireless power of the reading and writing device, no need to charge, no need to worry about battery life. -Waterproof and dustproof: With IP68 waterproof and dustproof grade, it can meet the application requirements of various environments. -Information sharing: R4 can share a variety of cloud information with one click, such as: encrypted text, electronic business cards, website pages, and online disk files. -Easy to use: It does not rely on a fixed mobile phone or APP, where the ring is private, it is safe and quick to log in, and you can edit and share with one touch. -Scene notification: R4 NFC ring can quickly trigger multiple preset notifications on any mobile phone. Description: NFC ring through the upper and lower two sets of NFC modules, it can run many of characteristic cloud services separately, and can be used directly without installing an APP. Specifications: Model: R4 Carrier frequency: 13.56MHZ, 125KHZ RF distance: 1~3cm IC module type: UID ID module type: T5577 NFC module type: Ntag213 Host material: ceramic Protection level: IP68 Operating temperature range: -50°C~ +80°C Applicable platform: for Android, iOS Size Inner Circumference (mm) 8# 57.1 9# 60 10# 62.8 11# 66 12# 70 Package Included: 1 * NFC Ring 1 * Manual Notes: -Please allow 0-1 inch error due to manual measurement. Thanks for your understanding. -Monitors are not calibrated same, item color displayed in photos may be showing slightly different from real object.