NOTES: Read / write paper and remote controls can be cloned and copied. Easy to operate: Only "Read" and "Write" two buttons. The link of the operation: https://1drv.ms/v/s!Ago7smi35dIngiFr3_wjee1P2idp Features: Support EN4100 Built in led lights and buzzer individual indicator. It is very easy and convenient for daily use. Portable size, easy to carry out in your bag. Handheld shape design, comfortable hand feeling. Specifications: Frequency: 125KHz Power: 2 x AAA battery(not included) Keyfob Distance: <=25mm Card Distance: <=60mm Size: 71 x 117 x 31mm Package Includes: 1 x RFID ID Card Copier 5 x Keyfob 5 x Card How to use: 1. Place the original card on the left side of the copier. 2. Hold down the "Read" button to read information from the original card. 4. Release the button after the copier flashes with the screen flashing "Pass". 3. Place the new card on the left side of the copier. 4. Hold the "Write" button to write information to the new card. 5. Release the button after the copier flashes with the screen flashing "Pass". 6. Please start the copier every time you want to copy new information from different maps.