1) Color: purple, blue, gray, yellow 2) Working frequency: EM4100/125kHz, MIFARE1S50/S70/13.56MHz 3) For access contral Features:1) Color: purple, blue, gray, yellow2) Working frequency: 125kHz, 13.56MHz3) For access control purpose4) With EM chip, Mifare1 chip, TM chip5) Packing: 100pcs/polybag different color,different chip ! Plastic RFID Key Tag