ear tags for pigs,cattle,sheep EM4305,HiTag-S256,T5577,I-Code SLI,Mifare S50 ISO ... standardsISO 11784 / 11785, ISO15693, ISO14443A/BMaterialspvc,pet,abs,psColor (customizable)White or yellowOperating frequency134.2kHz / 13.56MHzChemical ResistanceMeet the IP67 standard ...