10PCS 13.56MHz RFID Key Fob Proximity IC Card ISO14443A Token Tag for Electronic Smart Door Lock, Compatible with Classic 1K Card M1, Read Only

Note: These are 13.56MHz key fobs (tags). If you want to register them to your lock system, please ensure that your system uses the same frequency 13.56MHz. Incompatible with other frequencies like 125kHz.
Read only. Not re-writable. Each key fob is already pre-programmed. You cannot re-program them by a card writer.
Compatible with Classic 1K Card (M1 Card). If your lock uses M1 card, these key fobs work for your lock too.
Suitable for 13.56MHz RFID proximity access control system and ID management system. For example, register them to your RFID door lock as new keys if applicable.
Approx. Fob Size: 1.58*1.26*0.18 inch. Casing Material: ABS Plastic. Package includes 10 Pieces.
This Keychain works the same as normal M1 cards. Not re-writable.
Specifications Protocol: ISO14443A Capacity: 1k bytes EEPROM memory Rewrite Times: 100,000 times Read Distance: 0 ~ 10 cm(depends on the R/W device) Material: PVC Application Loyalty Ticketing Identification Access Control
Package Include
10pcs X 13.56MHz RFID Keychain