meulah: EM4450 Induction frequency: 100KHz~150KHz Standard: compatible with ISO11784/ISO11785 protocol EEPROM: 1024bit R/W distance: 2~5cm Read/write time: < 2ms Operating temperature: -20℃~+80℃ Storage data: 10 year Endurance: > 100,000 times Material: PVC/ABS/PET/PETG/PHA/Paper, 0.13mm copper wire Card dimensions: ISO standard card L85.6×W54×T0.80(± 0,4)mm, or specify size