Usage Tips: Handheld design for comfortable grip. Two buttons for simple operation. Standalone device—no computer or PC connection required. Built-in LED indicator and buzzer. Reading distance: 0–6 cm. Supports copying of 125 kHz cards only. Compatible with T5577, CET5200, EM4305, and EN4305. Read Capability: EM / TK series (e.g., EM4100, TK4100) cards or keys. Write Capability: EM4305, CET5200, T5577, EM4205, etc. (Note: HID cards 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 in image. Material: Plastic. Package Includes: 1 × Card copier, 5 × key fobs, 5 × cards. Note: Color may vary slightly due to screen settings and lighting conditions. Measurement tolerance: ±1–3 cm.