RFID 125KHz EM4100 ID Card Copier/RFID Duplicator with 10pcs rewritable keyfobs

Description

This order: 1 copier(exclude battery)/ 8 pcs 125KHZ blue rewritable keyfobs/2pcs crystal rewritable keyfobs. Instructions: 1.Install battery, red light flash, 2Read old card, 3.write new card. if cards too close or failure, please replace the battery.