jakcom r5 smart ring new product of smart wristbands match for mma smart bracelet bracelet sustained heart rate bracelet watch

built-in 6 sets of rfid chip modules, simultaneously simulate 2 ic cards, 2 id cards and 2 nfc cards use ring touch to transfer any files, and each ring has exclusive 128gb storage space the ring is inlaid with two energy stones to improve human emfs use the ring touch to share social contact, almost include all mainstream social platforms one touch to start up smart devices.syi