1. Built-in high-frequency antenna designed for optimal depth detection, eliminating blind spots and enabling uninterrupted reading of the entire data card. 2. Enhanced keystroke frequency allows the device to store extensive data. Data analysis is stable with a low error rate. 3. Low-frequency antenna improves signal-to-noise ratio for faster recognition speed. Compact and portable design meets diverse application needs. 4. No external antenna interface required—no connections needed, reducing risk of damage. 5. Simple and convenient lithium battery removal. Device can be powered via power bank in offline mode. Material: PC + Metal Color: Black Package Contents: 1 x RFID Card Reader Note: Only the items listed are included. Other products are not included. Light reflection and differences in display screens may cause slight color variations between the image and the actual item. Measurement may vary by +/- 1-3 cm.