UID is not change-able. 

Parameters:

Chip：FM1108

Storage capacity: 1K, 16 partitions, two passwords per partition

Operating frequency: 13.56Mhz

Communication speed: 106K boud

Reading and writing distance: 2.5-10CM

Reading and writing time: 1-2MS

Working temperature: -20 ° -85 °

Number of erase cycles:> 100000 times

Data retention:> 10 years

Specifications: 0.87 × 85.5 × 54 / non-standard card

Packaging materials: PVC, PET, 0.13 coins

Packaging technology: ultrasonic automatic line / automatic welding

Production standards: ISO 14443

Quantity: 100PCS