Latest JAKCOM R4 Smart Ring Multifunctional Lord Of The Rings NFC Waterproof Dustproof Health Tracker Wireless Sharing Ring nfc

1. Size: 7x7x3cm
2. Weight: 60g (including packaging)
3. Wearing method: wrist strap
4. Applicable system: i OS, Android
5. Microcrystalline zirconium ceramic body, excellent refractive index and dispersion performance, so that the whole exudes a unique round and smooth
6. Marathon craftsmanship, with nano characteristics of outer rigidity and inner flexibility
7. Function: virtual incoming call, scene notification, NFC cloud service, handy notes, information sharing, waterproof and dustproof, no need to charge
8. Carrier frequency: 13.56MHZ, 125KHZ
9. RF distance: 1-3cm
10. IC module type: UID
11. ID module type: T5577
12. NFC module type: NTAG213
13. Material: ceramic
14. Working temperature: -50-80 degrees Celsius