Read andCopy and duplicate the 125 Khz EM4305 CET5557 T5577 5200 EM4205 card /tag etc. Support 125Khz EM4100 / EM410X or compatible card /tag format (HID standard NOT compatible ) 2 buttons for Simple operations Standalone operation, NO need to connect with computer / PC. Easy to use: 1. push the read button to read the card. 2. take a new card and write on it. Very easy and comvenient Built-in individual LED lights and buzzer indicator Built-in transceiver antenna Battery power supply : 3V ( 2 x AAA battery)(Batteries not included) Small & Protable design : (115 x 70 x 30) mm Read / Writable card & keyfobs can be cloned and copied > 20000 times with difference IDs Note: this duplicator only can copy 125KHz RFID cards/tags Package Included: 1 x RFID 125KHz handheld copie Writable RFID EM4305 key tags (Depend on the payment option) How to use Read:Put the inductive proximity card in the induction area and hold the read key(left one),the buzzer will sound emitted by bit, the green on, successful reader. If there is no reflection but only the power light is blinking, the reader fail. Copy: After successful read,put the blank card in the induction area and hold the copy key(right one), the buzzer sound emitted by bit,yellow light on,indicating that the copy --- successful. If there is no reflection but only the power light is blinking, the copy fai