... 3.12 years manufacture 4.Strict QC , Fast delivery Hot 2012 mifare tag ntag203 for mobile phone payment Mifare tags ... Feature - Operating Frequency: HF 13.56MHz- Standard: ISO14443 A -Chip (hot ):mifare 1k ,ultralight ,ultralight C ,NTAG 203 ,TOPAZ 512 ,Desfire ... and tag antenna size.- Working temperature:-25°C ~ +55°C- Store temperature: -25°C ~ +65°CPrinting Option- Offset Printing-Silk printing ...