125khz RFID rewritable writable T5577 Brown Leather Key Fob (2)

125khz RFID rewritable writable T5577 Brown Leather Key Fob (2)

• Original T5577 Chip,it doesn't have pre-programmed id number,so need to write the id on it before you read
• it's rewritable chip,and it can write in 125khz id format and H ID WG 125khz format
• Please note it can't be read before you program the chip
• can write by 125KHz RFID writer/copier