Programmer Reader Encoder Duplicator Cloner RFID 125kHz Programmer do key fobs and RFID cards with a frequency of 125kHz. It is compatible with T5577 and EM4305 chips. The set includes 5 keychains and 5 RFID cards, all programmable. The device is easy to use, just have a do copy keyring and an empty do programming keyring. Apply the first one and press the READ button, then empty and press WRITE. The device is ideal for key services, intercom services as a cheaper replacement. The package contains: 1 x Reader/Programmer 5 x Keychain 5 x RFID card 1 x User Manual in English Specification: Operates in frequencies: 125 KHz Cloning: EM4100, HID, AWID (UNIQUE 125kHz) Saves to: T5577, EM4305 Dimensions: 115mm x 71mm x 2,2cm Display Dimensions: 6cm x 30mm Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.