Important Note : 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. Before use, you must first write data(card numbers) into them by a 125KHZ RFID card writer
Frequency : 13.56MHz; Sensing Distance: 2.5 to 10 cm (1 to 4 inch); Data Storage Life: 10 Years
Writable & Rewritable : It can be erased and written 100,000 times. Suitable for making new and back-up tags, with the 125kHz RFID card writer/copier