Detailed Product Description Specification:Product CodeKD-KT06Chip TypeEM4100, EM4305, TK4100, T5557, Mifare 1K/4K, I-Code SLIFrequency125KHz / 134.2KHz / 13.56MHzDimensions37 x 30 x 7.4 mmMaterialABSColorOrange, Grey, Blue / CustomizedStorage Temperature-40oC - 90oCOperating range-25oC - 50oC Weight4.9±0.1gCustomizedSilk screen printing / Jet printing / Laser barcode