Usage Tips: Handheld design for comfortable handling. Two buttons for simple operations. Standalone operation—no computer or PC connection required. Built-in LED indicator and buzzer. Reading distance: 0–6 cm. Supports copying of 125 kHz RFID cards only. Compatible with T5577, CET5200, EM4305, and EN4305. Read Support: EM/Tk (e.g., EM4100, TK4100) cards and keys. Write Support: EM4305, CET5557, T5577, 5200, EM4205 cards and keys. (Note: HID is not supported.) Built-in Features: Individual LED indicator, buzzer, and transceiver antenna. Power Supply: 3V (2 x AAA batteries, not included). Durability: 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: Other accessories shown in images are not included. Due to lighting and screen variations, actual product color may differ slightly from images. Measurement tolerance: ±1–3 cm.