JAKCOM R4 Smart Ring better than zigbee relay antimetal watch for men quartz wristwatches d20 smartwatch fit pcb | Безопасность и

• JAKCOM R4 Smart Ring
  IC / ID / NFC card simulation | iOS Android dual platform Cloud Application
  

• 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.
  

• 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.
  

• Nano feature
  By virtue of the low thermal conductivity of Micro-crystal Zr ceramics, JAKCOM R4 has a gentle touch sense as jade.
  

• Possess 4 times the hardness of aluminum alloy, calmly deal with all kinds of scratches in daily life.
  

• 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.
  

• 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.
  

• 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.
  

• Personal access card / Public access card
  Elevator card / Parking card
  Time card / Medical card
  

• Shopping card / Gas filling card
  Transportation card / Car key
  Membership card / Customized card
  

• 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.
  

• Virtual call
  JAKCOM R4 can quickly trigger a timed call on any mobile phone.
  

• Creating a proper reason for departure
  Avoiding to be embarrassed for exit
  

• Scene notification
  JAKCOM R4 can quickly trigger multiple preset notifications on any mobile phone.
  

• Save worry and make your family relieved at busy moments
  

• Provide additional guarantee with the messages at critical moments
  

• Hand-writing notepad
  JAKCOM R4 can quickly open the dedicated notepad corresponding to the chip on any mobile phone.
  

• Independent of fixed phone or APP,
  safe, fast and login free, easy on the trigger of editing and sharing.
  

• Information sharing
  JAKCOM R4 can share various cloud information, e.g.,
  encrypted text, business card, web pages, network disk files.
  

• Endow each encounter with full of color.
  

• Leave deep impression on each courteous reception.
  

• Continuously updated fingertip intelligent device
  JAKCOM development team continues to update more special functions for R4 Smart Ring, and will update your device synchronously.
  

• Waterproof and dust-proof
  The dust-proof waterproof level of JAKCOM R4 is IP68, and it can meet the application requirements of various environments.
  

• 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.
  

• 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: CUID
  ID module type: T5577
  NFC module type: Ntag213
  Ring material: Ceramics
  Protection grade: IP68
  Operating temperature range: -50℃ ~ 80℃
  

• Creative gift
  

• New favorite of cyber celebrity
  

Payment

• We accept Alipay, West Union, TT. All major credit cards are accepted through secure payment processor ESCROW.
• Payment must be made within 3 days of order. The order will be automatically shut down in buyer did not pay after 20 days.
• If you can't checkout immediately after auction close, please wait for a few minutes and retry Payments must be completed within 3 days.

Packing

• JAKCOM R4 Smart Ring Packaging Details:
  Inner White Box: Unit G.W is about 60g, Unit Size is 7cm x 7cm x 3cm;
  Outer Brown Box: Unit G.W is about 24670g, Unit size is 53cm x 29cm x 37cm , Max with 400 pcs.
  

Shippment

• WORLDWIDE SHIPPING. (Except some countries and APO/FPO)
• Orders processed timely after the payment verification.
• We only ship to confirmed order addresses. Your order address MUST MATCH your Shipping address.
• The images shown are not the actual item and are for your reference only.
• SERVICE TRANSIT TIME is provided by the carrier and excludes weekends and holidays. Transit times may vary, particularly during the holiday season.
• If you have not received your shipment within 30 days from payment, please contact us. We will track the shipment and get back to you as soon as possible with a reply. Our goal is customer satisfaction!
• Due to stock status and time differences, we will choose to ship your item from our first available warehouse for fast delivery.

Feedback

• Buyer's early confirmation will be highly appreciated after receiving the items.
• Since your feedback is very important to our business's development, we sincerely invite you to leave positive feedback for us if you are satisfied with our product and service. It'll just take you 1 minute,but this 1 minute has the extremely vital significance to us.
• Please contact us before leaving any negative or neutral feedback. We will work with you to solve any problem until make you satisfied with us.Thank you for your understanding!

Guarantee

• 12 months Manufacturer's limited Warranty for defective items (excluding items damaged and/or misused after receipt). Accessories come with a 3-month warranty.
• Defective items MUST BE reported and returned within the warranty period (and in the original packaging, if possible). You must tell us what the defect is and give us your order number. WE DO NOT REPAIR OR REPLACE ITEMS WITH AN EXPIRED WARRANTY.
• You agree to all of the above-listed policies upon ordering on aliexpress.

Special Note

• The read-write process of R4 IC/ID module is the same as ordinary cards;
• it can be authorized or copied by the corresponding dedicated read-write device;
• It is recommended to use JAKCOM RFID Replicator for copying, click to view JAKCOM CD1 Replicator  or JAKCOM CD2 Replicator 

JAKCOM R4 Smart Ring better than zigbee relay antimetal watch for men quartz wristwatches d20 smartwatch fit pcb161