The feature is rfid writer. The interface is rs-232. The usage is rfid reader. The frequency is 125khz. The description of software cloner: The rfid card reader is a portable card reader,pact and easy to carry. The handheld copier is a convenient,pact and practical device that can be used for all kinds of data.Description: 125 KHz hand-held replicator is a device used to produce and master card sample number, which adopts miniature hand-held external light, conforms to ergonomics and is easy to carry; adopts Silicon international advanced chip, all ...uded). Simple Read & Write operation, LED light and buzzer for direct indication. Handheld RFID ID Card Copier Key …125khz ID EM Card Reader & Writer ID Card Copy Machine/ ID Card Copier handheld rfid reader . The Handheld Duplicator is a Card-tech of 125Khz RFID can read the EM4100,EM4200,Tk4100 chip cards and can use the EM4305/T5577 card to copy their data .