Handheld shape design, comfortable grip and high-quality construction. Features two buttons for simple operation. Standalone device, no computer or PC connection required, making it easy to use. Built-in individual LED lights and buzzer indicator. Reading distance: 0 - 6cm. Capable of copying 125KHz RFID cards. Compatible with T5577, CET5200, EM4305, and EN4305. Parameters: Read: EM / TK (EM4100, TK4100, etc.) cards or keys Write: EM4305, CET5557, T5577, 5200, EM4205, etc. cards or keys (Note: Does not support HID) Built-in individual LED lights and buzzer indicator, transceiver antenna. Power Supply: 3V (2 x AAA battery, not included) Durability: Read/Write up to 20,000 times Dimensions: 115 x 70 x 30mm (L x W x H) Weight: 85g Color: As shown Material: Plastic Package Contents: 1 x RFID Copier 5 x Keyfob Tags 5 x Cards Note: Light reflection and differences in display screens may cause slight variations between the color of the item in the photo and the actual product. Measurement allows an error of +/- 1-3cm.