This is not a universal card; you must have the original card to create a 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 stored cards. Card writing function supports UID, CUID, and FUID cards. Supports writing mobile phone bracelet simulation cards, including ID5577 cards. Simulates 8 pairs of 1C cards (or NTAG cards) and 125KID cards. This device is a useful tool for individuals working with RFID technology, such as engineers, security professionals, or hobbyists. 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 Download program: Please contact customer service before purchase Color: Purple Material: PCB + Plastic Package Contents: 1 x Smart Chip Reader 1 x USB cable (cable color is random; no specific color accepted) 2 x Adapter (adapter color and style are random; no specific color or style accepted) 1 x UID keychain 1 x card Only the items listed are included; other products are not included Note: Lighting and display differences may cause slight variations in color between the image and the actual item. Measurement error allowance is +/- 1-3 cm.