5YOA Handheld 125KHz EM4100 TK4100 RFID Copier Writer Duplicator Programmer Reader EM4305 T5577 Rewritable ID Keyfobs Tags IDW01 RFID Reader Duplicator 125khz Handheld shape design, comfortable hand feeling and high quality. 2 buttons for simple operations. Standalone operation, no need to connect with computer / PC, easy to use. Built-in individual LED lights and buzzer indicator. Reading distance is 0 - 6cm. Can only copy 125KHz RFID card, Compatible with T5577, CET5200, EM4305 and EN4305. Note: If not read the card, the card should be belong to the not supportable type card. If not write the card, the card should be belong to the not supportable type card or not writable type card. Above two status, they are not the device's problems, please note that. Parameter Read: EM / TK (EM4100 TK4100 etc) cards or keys Write: EM4305 CET5557 T5577 5200 EM4205 etc cards or Keys Built-in: individual LED lights and buzzer indicator, transceiver antenna Power Supply: 3V (2 x AAA battery) Times: Read / Write > 20000 times Size: ( L*W*H ): 115 x 70 x 30mm