The LF 125KHz EM chip is a kind of cheap read-only applications, EM4102 mgbawa RFID igodo njikwa ohere, EM4102 mgbawa RFID igodo njikwa ohere, EM4102 mgbawa RFID igodo njikwa ohere. The surface can be print 18 bit, 10 bit or 8 bit number, can be made into the same number card, serial number card, can be perforated. Printing portrait photo, can also made into key chain, silicone bracelet or various shapes smart card. RFID smart card-Clamshell card (85.5× 54 × 1.80mm) and ISO card(85.5× 54 × 0,84), the card Water-proof.