Note: 1.4 AAA batteries or USB power supply is supported ( batteries not included) 2. when there is a disclaimer,don't click the "confirm", press "ok" 3. Some partly encrypted, fully encrypted cards aren't applicable. 4. It doesn't work for fully-encrypted cards. How to Copy a an unencrypted card: 1. Press "on/off "button to start up, a disclaimer will pop up. Press"Ok" button to enter the card reading interface. 2. Place the card to be copied in the sensor area. Press the"scan" button, card frequency and card number will be displayed. Card reading successful. Replace blank card in the sensor area press the"write" button, complete duplication unencrypted cards. Support read write Frequency: ID125KHz,ID 250KHz,ID 375KHz,ID 500KHz, ID625khz, ID750kHz, ID875KHz, ID1000KHZ, IC13.56MHz,HID 125Khz cards Support read: EM4100/EM4200,Micrometre classic, UID cards, Ultralight, Ntag203/1386/1326/1346; Support cards write: 1386/1326/1346/T5577/EM4305, Micrometre UID cards. Not compatible for iClass ,awid , Indala and Keri cards .Applications: access control system, RFID door card, parking card, proximity card, etc. The software of our machine is only compatible with Windows system, not working with MAC system or Linux system. The applicability of our reader is limited , it cannot match all types of FRID cards. If your card is not the type listed by us, or if you don't know the type of your card, please do not buy it, or you can consult us. color: White Material: ABS Package Contents: 1pcs Handheld RFID NFC Copier Reader Writer 1pcs USB cable 5pcs ID 125khz cards 5pcs UID 13.56mhz writable key 5pcs ID 125khz keyfobs 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.