Product Features: 1. Smart Display Screen and USB Interface. HD 2.8 inch full color screen, clear display, built-in multi-lingual. With USB interface, you can connect it to the computer directly. 2. Compatible System. The software of our machine is only compatible with Windows system, not working with MAC system or Linux system. 3. Support Read and Write 10 Frequencies. Support 125KHz, 250KHz, 375KHz, 500KHz, 625khz, 750kHz, 875KHz, 1000KHZ, 13.56MHz (ISO1443A/B), support HID Proxy cards, etc. 4. Crack Encrypted Card. Our reader can crack most of 13.56MHz encryption cards.(Please ensure that this operation must connect the reader to the computer). 5. Match Various Types Of Cards. Compatible with EM cards, Mi-fare classic, UID cards, T5577, HID 1386/1326/1346, Ntag 213/215/216, etc. Note: Our device mainly used for access control, the applicability of our reader is limited, it cannot match all types of FRID cards. Please read our product description carefully. If your card is not the type listed by us, or if you don't know the type of your card, please feel free to consult us before ordering. Thanks! How to read and write normal RFID cards? 1. Press the "on/off " button. 2. Put the cards on the back of the copier. The copier will be show the "Waring" page. Press "ok" 3. Put the cards on the back side of the copier and press "scan" 4. The copier will scan and show the card number. 5. Put one writable T5577(125khz writable chip) or UID(13.56mhz writable chip) card on the back side of the copier and press "Write" Color: White Material: plastic Package Contents: 1 x RFID Reader 5 x keyfob tags 5 x cards 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.