... Features: Working Frequency: 125KHZChip type: EM 4100, EM4102, TK4100, EM4200, etc.Material: PVC, PETInlay Format: 2*4, ... : 1-15cmData Storage Time: 10 years.Application: smart card, RFID card, contactless card, contact-free card, door ... involved in RFID and electronic consumer market, such as ID cards, IC cards, smart cards, irregularly shaped cards, magnetic cards, barcode card, PVC cards, etc ...