[Working frequency] 125KHz / 13.56 MHz, support IC / ID dual frequency replication, support NFC tags. [Read and write ordinary 125KHz RFID card]1. Place the card on the card reader and press 'Read EMID' on the software to the card.2. The software will and display the card number.3. Place a writable 125KHz writable chip on the card reader, and press 'Write EMID' on the software. [Read and write 13.56MHz IC, IC semi-encryption card, IC full encryption card]1. Place the card on the card reader, press 'Read' on the software to decryption.2. "" indicates successful decryption, and "X" indicates failure. 3. After the decryption is successful, the software displays the card number. 4. Put a writable 13.56MHz writable chip on the card reader, and press 'Write Type-A' on the software. [Efficient high-speed USB] 1.2 length USB transmission line connected to the device, respond immediately, no need to install a driver, quickly read the card number. Hardware Interface:USB Compatible Devices: Personal Computer color:Black :ABS Package Contents: 1 x Card reader 1 x USB cable 3 x IC card 3 x UID key fob Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.