Six RFID Cards Coexist,Simultaneously 2 IC cards, 2 ID/HID cards and 2 NFC cards, 6 cards coexist without .The ring is inlaid with two energy stones to improve EMFs. Wireless USB Flash Disk: Use ring touch to transfer any files, and each ring has exclusive 128GB storage space. The ring can be set as the starting switch for Shortcuts.can be set as a trigger for the intelligent scene of MI Home Smart Devices.can be set as the connection tag of Share and the common to unlock the game mode or props. R5 has Tai design of double colors on front and back sides, which is a new fashionable accessory.The whole body is made of microcrystal zirconium fine ceramics, The hardness is second only to diamond, and scratch free Colour:As Shown Material:ceramics Size:S Package Contents: 1 x R5 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.