10 PCS Writable 125kHz RFID Key Fob Proximity ID Card Token Tag Rewritable T5577 Universal Blue Fobs industrial diameter of 4 mm (0

diameter of 4 mm (0

it can be activated by charging it for 1 minute

Ideal for both personal and professional use

●There is no more car suction mobile phone holder

Union Tee connector x5

10 PCS Writable 125kHz RFID Key Fob Proximity ID Card Token Tag Rewritable T5577 Universal Blue Fobs industrial diameter of 4 mm (010 PCS Writable 125kHz RFID Key Fob Proximity ID Card Token Tag Rewritable T5577 Universal Important Note: 1. These are blank tags without pre programmed card numbers. You cannot directly add them to RFID locks or use a card reader to read them. 2. Before use, you must first write data(card numbers) into them by a 125KHz RFID card writer. FAQ: 1. Question: Can I directly register these tags to my electronic lock? Answer: No. These tags are blank tags