This is not a universal card, you must have the original card to copy!CPU cards cannot be copied, room cards, financial cards, and recharge cards cannot be copied! With This Device, you can create copies of RFID tags and cards, which can be used to access secure areas or equipment that require RFID authentication. You can also emulate and stores different types(125KHZ/13.56MHZ) of RFID cards,Each channel can store 2. A total of 16 can be stored. Card writing function: support writing UID cards, CUID cards, FUID cards;Support writing mobile phone bracelet simulation cards: support writing ID5577 cards. Simulate 8 pairs of 1C cards (or NTAG game cards) and 125KID cards This Device is a valuable tool for anyone working with RFID technology, whether you're an engineer, security professional, or just a curious hobbyist. And thanks to its compact and portable design, you can take it with you wherever you go! Working frequency:125KHZ /13.56MHZ Battery:Lithium battery Power on:Automatic start and stop. Communication mode:TypeC/USB/Bluetooth Decoding mode: Read card or Detect device. Support write card. Indicator light: Red light indicates dual-band card, green light indicates IC card, blue light indicates ID card. Colour:Purple Material:plastic note:The colors of adapters, data cables, and keychains are random, don't accept the specified color 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, other products are not included. Note: Light reflection 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.