[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 scan the card.2. The software will scan 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 start 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 meters 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 Material: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 picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.