Characteristics: 1. Supports ISO11784/11785, -B and ID64 RFID. 2. Easy to operate with a single button for reading. 3. Backlight screen allows for easy viewing in low-light conditions. 4. History data can be accessed in internal read mode. 5. Low battery alarm activates when voltage drops below 7.8V. This RFID reader is compact, simple, and user-friendly. It features a built-in rechargeable lithium battery for eco-friendly operation. Designed to read all 134.2kHz -B tags, it supports ISO11784/11785, -B and ID64 RFID standards. The backlight display enhances readability, and stored history data can be retrieved in internal read mode. A low battery warning alerts users when charging is needed. Specifications: Frequency: 134.2kHz Reading Standard: ISO11784/11785, -B, ID64 Continuous Working Time: 5 hours Battery: Lithium battery Product Size: 6 x 12 x 1.5cm (2.4 x 4.7 x 0.6in) Device Size: 12.5 x 61.5mm (0.5 x 2.4in) Weight: 119g Color: Black Material: Plastic Package Contents: 1 x Pet Scanner 1 x Charging Cable Note: Light reflection and differences in display screens may cause slight variations between the color shown in the image and the actual product. Measurement may vary by +/- 1-3cm.