Features: 1. The tag is fully compatible with mi-fare 1k cards / tags. 2. The block0 of the card (the block where the UID is located) can be modified arbitrarily and modified repeatedly. 3. Block0 can be modified directly with ordinary mifare reader, no special equipment is needed. 4. The default password of the card is 12 F, namely FFFFFFFFFFFF Parameters: storage capacity: 8Kbit, 16 partitions, each partition two passwords Operating Frequency: 13.56MHZ Communication speed: 106Kboud Reading distance: 2.5-10CM Read time: 1-2MS Working temperature: -20 -85 rewritable Times: 100000 times Data storage: 10 years Packaging materials: PVC, PET, 0.13 copper coins Packaging process: Ultrasonic automatic planting/automatic welding production standard: ISO 14443, ISO 10536 Application scope: water meter prepaid, campus card, public transportation Stored-value , highway toll, parking lot, community management.