R4 Smart Ring New Technology NFC ID M1 Ring, Suitable compatible with Android IOS Windows NFC Smart

R4 Smart Ring New Technology NFC ID M1 Ring, Suitable for Android IOS Windows NFC Smart The body of microcrystalline zirconium , the whole body of R4 is made of microcrystalline zirconium , with refractive and dispersion performance, so that the whole emits a unique round . The designed circuit structure greatly reduces the electric field interference between the modules. Compared with the previous generation products, it has increased the sending and receiving distance by 3 and is 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 products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.