Parameters Frequency: customized 125KHz/250KHz/375KHz/500KHz Read distance: 2~ 10cm, depending on the Reader and the application environment Wipe the number: >100,000 times Storage: 10 years Working temperature: -20℃~+80℃ Packaging materials: ABS Size: 43× 30 x 5mm tabi 50 x 30 x 5mm, can be customized Colors: pupa, alawọ ewe, blue, ofeefee, funfun, ati be be lo. Akiyesi: JavaScript nilo fun akoonu yii.