RF chip: NTAG213, NTAG216, M1 S50, etc. RF dalas: 13.56MHz Communication protocol: ISO 14443 typeA Sensing distance: 1~8 cm Material: ABS, PVC, Epoxy Dimensions: φ25mm, φ28mm, φ30mm, φ35mm, φ42mm, 35× 35mm, 20× 30mm, 22× 45mm, 54× 85.5mm, at iba pa, can be customized Shape: pag-ikot, parisukat, hugis-parihaba, tambilugan, hindi regular na hugis, cartoon hugis, etc. can be customized Production process: apat na kulay sa pagpi-print, padrong sutla, ibabaw pagpi-print number, lOGO, …