Storage capacity: 8Kbit, 16 partitions, two sets of passwords for each partition Working frequency: 13.56MHZ Communication speed: 106Kboud Reading distance: 2.5-10CM Reading and writing time: 1-2MS Working temperature: -20-85 Erase and write time: more than 100000 times Data retention: more than 10 years production: ISO 14443, ISO 10536 Scope of application: prepaid water meter, campus card, bus stored value card, highway toll, parking lot, community management Color: mixed color Material: ABS Package Content: 50 x UID Copy Card Only the above package, other products are not included . Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The allowable measurement error is +/- 1-3 cm.