Praecipua technica parametri Communication protocol: ISO 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, width 8mm, size can be specified Color: nigreos, album, rubrum, rosea, aurantiaco, viridi,, caeruleum, etc.. pondus: 3 grams Optional process: printing, cibus iniectio, Philoponus, aut numerum logo, fill-color Packing: 100/lapides sacculi, 1000/arca archa