igbohunsafẹfẹ: 125KHz Communication speed: 106kbps Read and write distance: 2~ 15cm, depending on the reader and the application environment Endurance: >100,000 times Data storage: 10 years Working temperature: -20℃ ~ + 80 ℃(-4℉ ~ + 176 ℉) iwọn: tinrin kaadi: 85.5×54×0.84mm Non-standard thin card: 85.5×54×1.05mm Thickness card: 85.5×54×1.80mm Materials: PVC, Pet, ABS, iwe, ati be be lo.