1.Chip: rfid 1k Chip<br> 2.Function: Read/Write protect by password,UID can’t change,uid is not rewritable<br> 3.Memory: 1K Byte<br> 4.Sticker dimensions: 25mm diameter<br> 5.Material: Paper<br> 6.Frequency: 13.56MHz<br> 7.RF Protocol: ISO 14443A<br> 8.Data storage time: minimum 10 years<br> 9.Can work with RC522 and PN532<br> 10.Package: 50pcs per bag<br> 11.Works with KABA,SAFLOK,MIWA AND ONITY LOCKS etc, but NOT work with HID,Salto and Assa Abloy RFID Locks, also NOT compatible with Amiibo and 125KHz EM Readers.<br> <br>