RFID Reader Writer: The ChameleonUltra is not only a rfid copier, but also a rfid tag. You can use it to clone a smart card data and it can be used to test and validate the behavior of other RFID control systems, as if it is a real RFID keychain Multifunctional Compatible: The Chameleon Ultra is designed dual frequency in one device. It supports 125Khz ID cards(T5577 and EM41xx) and 13.56Mhz IC cards(Semi-encrypted cards, full-encrypted cards and third generation of vulnerability card cards) Smart Cards Replacement: There are 8 card slots, it can 8 IC cards and 8 ID cards at the same time. It means one card access all control systems in your . (Notice: It is not a universal card, it requires for original-cards to copy.) Convenient Use: The shape of the rfid cloner is sleek. Its overall size is 4.5 x 2.45 x 0.75cm, very and can be carried around. And it is built-in battery that can be used (3 to 5 times one day) for more than one month when once The rfid writer supports most common cards, such as residential community access card, attendance card, elevator card(full encryption card with scrolling code is not supported) and NFC bracelet, you always have chance to use it in your . Color:As Shown Material:Metal Package Contents: 1set * fob copier 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.