ikike ncheta: 64bit Work mode: Read-only Security features: global unique serial number Frequency: 125KHz Speed of communication: 106kbps Read and write distance: 2~5cm Erasable times: >100,000 times Data storage: 10 years Working temperature: -20℃~+80℃ Size: Thin card 85.5×54×0.84mm Thick card 85.5×54×1.80mm Packaging materials: Ịkwanyere / PITA / ABS / Akwụkwọ,etc.