This is not a universal card; you must have the original card to copy. CPU cards, room cards, financial cards, and recharge cards cannot be copied. With this device, you can create copies of RFID tags and cards for use in accessing secure areas or equipment that require RFID authentication. It supports emulation and storage of different types of RFID cards (125kHz/13.56MHz). Each channel can store 2 cards, with a total capacity of 16 cards. Card writing function: supports writing UID, CUID, and FUID cards. Supports writing mobile phone bracelet simulation cards, including ID5577 cards. Includes 8 pairs of 1C cards (or game cards) and 125KID cards. This device is a valuable tool for anyone working with RFID technology, whether a security professional or a hobbyist. Its compact and portable design allows for convenient transport. Working frequency: 125kHz / 13.56MHz Battery: Lithium battery Power on: Automatic start and stop Communication mode: Type-C / USB / Bluetooth Decoding mode: Read card or detect device Supports card writing Indicator light: Red light indicates dual-band card, green light indicates IC card, blue light indicates ID card Color: Material: Plastic Note: The colors of adapters, data cables, and keychains are random; specified colors cannot be requested. Package Contents: 1 x Smart Chip Reader 1 x USB cable 2 x Adapter 3 x UID keychain 3 x CUID keychain Only the above package content is included; other products are not included. Note: Light reflection and differences in display screens may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.