Chip: EM4102, EM4200, TK4100, EM4305, EM4450, Mifare 1k S50 or Compatible with FM11RF08 Working frequency: 125KHz or 13.56MHz Working mode: LF: read-only; HF: R/W Induction distance: 2~10cm Internal serial number: 5 bytes Size: Thin card: 85.5×54×0.84mm Standard thickness thin card: 85.5×54×1.05mm Thickness card: 85.5×54×1.80mm (with a portable hole) Read and write distance: 2-10cm, depending on the reader and the environment Working …