Jakcom R4 Smart Ring New technology NFC ID M1 Magic Finger Ring For Android IOS Windows NFC Phone Smart Accessories1.Jakcom R4 is entirely made of micro-crystal Zr ceramics,calmly deal with all kinds of scratches.
2.Jakcom R4 carries with multiple sets of RFID chip modules.capable of simulating 4 contactless RFID cards.
3.Jakcom R4 is capable of operating different functions Or sharing different information on Android and IOS platforms Through two sets of NFC modules,
Virtual call(Quickly trigger a real timed call)
Scene notification(Quickly trigger multiple preset notifications)
Business card sharing
About size: size selection refer to the picture at the end of the description