This device supports automatic polling functionality, enabling it to recognize authorized access credentials and trigger door unlocking when configured. Our compact and versatile device is capable of reading, cloning, and emulating a wide range of RFID tags and cards. It supports multiple RFID frequencies, including 125 kHz and 13.56 MHz. This tool is suitable for professionals and hobbyists working with RFID technology. Its portable design makes it convenient for on-the-go use. Product appearance, color, and printed text may vary slightly between batches, but these variations do not affect functionality. Color: Black & Transparent Material: Plastic Package Contents: 1 × Smart chip reader 1 × CUID keychain (color varies) 1 × UID keychain (color varies) 2 × Adapter (color and appearance may vary; interface remains consistent and fully functional) 1 × Data cable (color varies) Note: The package includes only the items listed above. Please note that monitor settings and lighting conditions may cause slight color differences between the product image and the actual item. Measurement tolerance is ±1–3 cm.