Technical parametersFrequency: 13.56MHzProtocol standard: ISO/IEC 14443AMemory: 8kbitCommunication speed: 106kbit/sR/W distance: 2.5~10cm (related to the antenna size and card reader)Reading and writing time: 1-2msWorking temperature: -20℃ ~ + 85 ℃(mwando 90%)Kutsungirira: >100,000 timesData retention: >10 yearsSize: customer specifiedPackaging materials: ABS, 0.13 copper wirePackaging process: Ultrasonic wave auto plant lines/Automatic Welding