Main technical parameters Communication protocol: ISO 14443 TypeA Induction frequency: high frequency 13.56MHz Package IC chip: NTAG213, FM11RF08, or specify Working temperature: -20°C~+80°C Dimensions: inner diameter 20mm, iwọn 8mm, size can be specified Color: dudu, funfun, pupa, Pink, ọsan, alawọ ewe, blue, ati be be lo. àdánù: 3 grams Optional process: titẹ sita, idana abẹrẹ, engraving LOGO tabi nọmba, fill-color Packing: 100/bag, 1000/apoti