JINYI Handheld 125KHz RFID Duplicator Copier Writer Writer Card Reader Features: Reads EM4100 or TK4100 Keys and Cards Reads and Duplicates 125Khz EM4305 CET5557 T5577 5200 EM4205 Cards and Tags Supports 125Khz EM4100/EM410X or Compatible Card and Tag Formats (HID Standard Incompatible) Built-in independent LED light and buzzer indicator Built-in transceiver antenna Battery power supply: 3V (2 AAA batteries) (battery not included) Small and portable design: can clone read/write cards and key fobs and use different ID copy > 20000 times How to use: Read: Put the proximity proximity card (EM4100 or TK4100 or EM4305 or T5577 with internal information) into the induction area and press and hold the read key (left one). A buzzer will sound, signaled by a green indicator light, indicating success. If the power light is only blinking, the card reader is faulty. Copy: After the reading is successful, put the blank card into the induction area, and press and hold the copy button (the first one on the right). A beep from the yellow light indicates success. If the power light is only blinking, the card reader is faulty. Note: This copier can only copy 125KHz RFID cards and labels Please note that due to the possible color and size difference between the light effect photo and the real object, please allow 1-2 cm error Quantity: Package includes: 1pc, duplicator, no battery Size: 11.5 x 7 x 3CM color: blue