HIGH SENSIBILITY: Independent operation, no need to connect to computer / PC. Built-in transceiver antenna, high sensitivity and fast reading and writing speed. Handheld shape design, 2 buttons for simple operation, comfortable for you to use EASY OPERATION: Built-in individual LED lights and buzzer indicator to indicate the procedure of your operation. Supports EM4100 EM4200 versions. Support 125Khz EM4100 / EM410X or compatible card /tag format only (HID standard NOT compatible ) MULTIFUNCTION: You can get the ID cards for more purposes, such as access control identification, attendance check, etc EASY TO COPY: This ID card reader is a handheld 125KHz RFID card making machine, which can easily copy and write the 125KHz ID card number GOOD SERVICE: We solemnly promise you that if you find problems with the product itself, you can contact us in time. we will definitely give you a reply immediately ID Card Copier, Portable Handheld Writer Copier Duplicator for 125KHz RFID ID Card for Access Control with 5 Tags