5YOA Handheld 125KHz EM4100 TK4100 RFID Copier, Printer, Copy Programmer, Card Reader EM4305 T5577 Rewriteable ID Keychain 5YOA Handheld 125KHz EM4100 TK4100 RFID Copier, Printer, Copy Programmer, Card Reader EM4305 T5577 Rewriteable ID Keychain IDW01 RFID Card Reader, Copying Device 125kHz Handheld design, comfortable grip, excellent quality. 2 buttons, easy to operate. Operates independently, no need to connect to a computer/PC, convenient to use. Built-in independent LED indicator and buzzer indicator. Reading distance is 0-6cm. Can only copy 125KHz RFID cards, compatible with T5577. CET5200, EM4305, and EN4305. Note: If the card cannot be read, it is definitely an unsupported type. If the card cannot be written to, it is definitely an unsupported or non-writable type. If more than two states occur, it is not a device malfunction; please be aware. Parameters Read: EM/TK (EM4100, TK4100, etc.) cards or keys Write: EM4305, CET5557, T5577, 5200, EM4205, etc. cards or keys Built-in: Independent LED indicator and buzzer indicator, transceiver antenna Power supply: 3V (2 AAA batteries) Number of reads/writes: > 20,000 times Dimensions (L*W*H): 115 x 70 x 30 mm