Usage Tips: Handheld shape design for comfortable handling. Two buttons for simple operations. Standalone operation—no computer or PC connection required. Built-in LED lights and buzzer indicator. Reading distance: 0–6 cm. Supports copying of 125 kHz RFID cards only. Compatible with T5577, CET5200, EM4305, and EN4305. Parameter Read: EM / TK (e.g., EM4100, TK4100) cards or keys. Write: EM4305, CET5200, T5577, EM4205, etc. cards or keys. (Note: HID is not supported.) Built-in: Individual LED lights and buzzer indicator; transceiver antenna. Power Supply: 3 V (2 x AAA batteries, not included). Lifespan: Up to 20,000 read/write cycles. Dimensions (L × W × H): 115 × 70 × 30 mm. Weight: 85 g. Color: As shown. Material: Plastic. Package Contents: 1 × RFID Copier, 5 × Keyfobs, 5 × Cards. Note: Light reflection and display differences may cause slight color variation between the image and the actual item. Measurement tolerance: ±1–3 cm.