Product name:RFID TAG KEY CARD Chip:TK4100,EM or Mifare 125KHz tag Key Card / key fob:1)material:ABS2)color:red,yellow, ... blue,black,green,purple etc3)operating frequency:125KHz, 13.56MHz4)for ... access control system5)packaging detail: 100pcs/poly bag, 2500pcs/carton6)application: hotel, school, transportation, bank, ...