RFID Keyrings Dual Frequency 125KHz 13.56MHz 2-in-1 UID Composite Keychains Rewritable Used for Copy Clone Keys Cards Red S

13.56MHZ 125KHZ RFID Smart IC ID Composite Cards with Chip Card for Access Control System Features Waterproof dustproof Power block 0 which can be modified 125 kHz remote controls copied arbitrarily Dual frequency dual chip access control system compatible 125 khz 13.56 mhz Readable rewritable no external power supply required Easy to carry small exquisite appearance practical durable Specification Frequency 13.56 MHz 125 kHz Card chip dual chip UID T5577 Read write time 1 2 ms Rewritable Data retention Material PVC PET AL inlay Operating temperature -20-85 degrees Application Access control hotel locks staff attendance school campus access member management payment control identification security systems parking access social security management transportation municipal auxiliary services IC UID T5577 Key Ring