Enjoy the convenience and quality of this handheld RFID copier! Features a comfortable grip and simple two-button operation. Operates independently, no computer needed – incredibly easy to use. Built-in LED lights and buzzer provide clear indication. Reading distance: 0 - 6cm. Copies 125KHz RFID cards only. Compatible with T5577, CET5200, EM4305, and EN4305. Parameter Reading: / TK (EM4100 TK4100 etc) cards or keys. Writing: EM4305 CET5557 T5577 5200 EM4205 etc cards or keys (Note: not supported). Built-in: Individual LED lights and buzzer indicator, transceiver antenna. Power supply: 3V (2 x AAA battery, not included). Times: Read / Write 20000 times. Size: (L*W*H): 115 x 70 x 30mm. Weight: 85g. Color: As Shown Material: Plastic Package Contents: 1 x RFID Copier 5 x Key Fobs 5 x Cards Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The measurement allowed error is +/- 1-3cm.