T5577 or UID chip RFID Black Ceramics Smart Finger rewrite Ring ID/IC Wear for Men or Women(T5577 ID-21MM)

About this item T5577 ID ring In-built with copyable T5577 chip, can copy the tag like TK4100/EM4100/EM4200.
T5577 ID ring is blank, it can not directly used for access reader if without copied or written.
T5577 ID ring is RFID ring, not NFC ring, it can not directly work with NFC phone.
T5577 ID ring uses 360-degree omni-directional sensing technology, the sensing effect is much higher than similar products in the market.
T5577 ID ring is made of zirconia ceramic material, which is very comfortable to wear.