RF chip: LEGIC MIM256/LEGIC MIM1024 Storage capacity: 256/1024 Bytes Protocol standard: ISO 14443 F Adapt to temperature: -30℃~+70℃ Wiping life: more than 100,000 times Data retention: 10 years Reading distance: 2~10cm Card size: 85.6×54×0.84mm or customizable 1.05/1.8mm thickness Packaging material: PVC/PET/ABS/PC/PETG/Copper paper, njl.