Usage Tips:Support custom printing of 125Khz/13.56Mhz mobile phone stickers, standard cards, key strings and card readers. IDW01 RFID Reader Duplicator 125khz,The modified version supports HI-D cards, but it needs to use the corresponding copy card. Due to the version update, the appearance may be slightly different, but the functions are the same. Handheld shape design, comfortable hand feeling . 2 buttons for simple operations. Built-in individual LED lights and buzzer indicator. 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, ceiver antenna Connection: USB cable connection to PC (Plug and Play, Driverless for Windows 2000, 2003, XP,Windows7/ 8 / 10 etc) Times: Read / Write Greater than 20000 times Size: ( LxWxH ): 115 x 70 x 30mm Weight: 85g (Keychain color is random, don't accept the specified color) Colour:As Shown Material:plastic Package Contents: 1 * Handheld RFID 6 * Keychain 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 a little different from the real thing. The measurement allowed error is +/- 1-3cm.