चिप: Atmel T5577 Memory capacity: 330bits Working frequency: 125KHz Communication rate: 9600 bonds Read/write time: 0.1ms Work mode: read-only Read distance: 5~8cm Working temperature: -20℃~+55℃ Erasable times: > 100000 times Storage: 10 years Size: 85.6×54×1.8mm Materials: ABS