Jackcom R4 Smart Ring Wearable Device NFC Magic Ring Waterproof Health Men Women Ring Jewelry for IOS Android Phone Black Ring

Product Description 1. IC / ID / NFC card simulation | iOS Android dual platform Cloud Application 2.Micro-crystal Zr ceramics . JAKCOM R4 whole body is entirely made of micro-crystal Zr ceramics. With excellent refractive index and chromatic dispersion, the device emits unique rounded luster. 3.Marathon process Each ring needs to undergo forging for 2 days, sintering in a 1400 ℃ furnace for 5 days, thousand times of CNC polishing, coating and other post-procedures. It takes 35 days to present the ring in front of you. 4.Nano feature By virtue of the low thermal conductivity of Micro-crystal Zr ceramics, JAKCOM R4 has a gentle touch sense as jade. 5.Possess 4 times the hardness of aluminum alloy, calmly deal with all kinds of scratches in daily life. 6.New flagship of smart ring JAKCOM R4 is the fourth generation smart ring,it carries with multiple sets of RFID chip modules. And is capable of simulating four contactless RFID cards. Once again, it becomes a new flagship product. 7.Brand new design, brand new breakthrough The newly designed circuit structure has greatly reduced the electric field disturbance between the modules. Compared with the previous generation of products, it has increased the transmit-receive distance by three times, and can be easily compatible with a variety of card reading devices. 8.Multi-frequency bands and multi-standards From 125KHz to 13.56MHz, JAKCOM R4 can simulate encrypted IC cards or ID cards in a variety of formats, help you to effectively deal with all-fields card swiping scenes. 9.Personal access card / Public access card Elevator card / Parking card Time card / Medical card 10.Shopping card / Gas filling card Transportation card / Car key Membership card / Customized card 11.NFC cloud services flying its own colors The built-in featured cloud services can be respectively started through the two sets of NFC modules It can be used directly without APP installation and is Applicable to Android and iOS dual platforms. 12.Virtual call JAKCOM R4 can quickly trigger a timed call on any mobile phone. 13.Creating a proper reason for departure Avoiding to be embarrassed for exit 14.Scene notification JAKCOM R4 can quickly trigger multiple preset notifications on any mobile phone. 15.Save worry and make your family relieved at busy moments 16.Provide additional guarantee with the messages at critical moments 17.Hand-writing notepad JAKCOM R4 can quickly open the dedicated notepad corresponding to the chip on any mobile phone. 18.Independent of fixed phone or APP safe, fast and login free, easy on the trigger of editing and sharing. 19.Information sharing JAKCOM R4 can share various cloud information, e.g., encrypted text, business card, web pages, network disk files. 20.Endow each encounter with full of color. 21.Leave deep impression on each courteous reception. 22.Continuously updated fingertip intelligent device JAKCOM development team continues to update more special functions for R4 Smart Ring, and will update your device synchronously. 23.Waterproof and dust-proof The dust-proof waterproof level of JAKCOM R4 is IP68, and it can meet the application requirements of various environments. 24.No need to charge JAKCOM R4 is driven by the radio energy of the read-write equipment. Charging is not needed. No need to worry about the battery life. It can accompany with you in every single day. 25.Size selection 1. When measuring, please use a fine line without elasticity to wind around your finger; 2. Tighten the line slightly, otherwise the ring will be over size; 3. After straightening the line, measure its length with a ruler, and choose the size according to the table below.

Parameters and details Carrier frequency: 13.56MHz, 125kHz RF distance: 1 ~ 3cm IC module type: UID ID module type: T5577 NFC module type: Ntag213 Ring material: Ceramics Protection grade: IP68 Operating temperature range: -50℃ ~ 80℃Label: Yes Label: Yesnumber size： 8perimeter：57.1 9perimeter：60 10perimeter：62.8 11perimeter：66 12perimeter：70