tem NO : VI2R1401Antenna Size : Ф22mmLabel Size : Ф25mmAntenna materail : Aluminium Substrate material: PET Antenna thickness of 0.04mmSubstrate thickness : 0.08mm Packing : roll/unit/sheet Chip no :I-code SLI/I-code EPC Frenquency:14.0+/-0.3MHzR/W distance:≥10CM(MR100)