915 Generation R4 Smart Ring for Android IOS Windows NFC

The body of microcrystalline zirconium ceramics, the whole body of R4 is made of microcrystalline zirconium ceramics, with refractive and dispersion performance, so that the whole emits a unique round luster.
The newly designed circuit structure greatly reduces the electric field interference between the modules. Compared with the previous generation , it has increased the sending and receiving distance by 3 and is easily compatible with card .
From 125KH to 13.56MHz frequency band, R4 can a of standard encrypted C card or D card, helping you effectively deal with card swiping scenarios in all fields.
Suitable for with a circumference of 62.8 mm
R4 is a multi-functional RFID wireless radio frequency ring. The built-in IC and ID modules can be used to replace radio frequency cards such as access cards, parking cards, membership cards, consumer cards, etc.; the built-in NFC module can be used to implement virtual incoming calls, location notifications, cloud such as business card sharing and memo sharing. Applicable people: children
Wearing style: wrist strap
Applicable system: iOS, Android
Compatible platforms: iOS, Android
Colour: black
Material: ceramic + metal
Size: Diameter: about 2.5cm Package Contents:
1 x Smart ring Only the above package content, other are not included.
Note: Light reflection and different displays may cause the color of the item in the a little different from the real . The measurement allowed error is +/- 1-3cm.