Advanced RFID Technology: This scanner supports 134.2KHz and 125kHz frequencies, ensuring wide compatibility for effective pet identification. 0.91-inch high-brightness OLED: This scanner uses a high-brightness OLED display that can be clearly seen in dark environments. Multiple upload modes: It can store 128 pieces of data and supports one-click upload to a computer. Portable and easy to use: This scanner is designed for easy use and is equipped with a USB interface for fast data transfer. Ideal for veterinarians, pet shelters, and animal rescue centers. and reliable: This scanner is and reliable, making it an essential tool for pet safety and management. Tag format: -B, EMID (ISO11784/85) Communication distance: 2.12x12mm glass tube chip: 5cm 30mm diameter ear: 10cm EMID card: 5cm Working frequency: 134.2/125Khz Standard: ISO 11784/85 Induction interval: Less than 100ms Signal indication: 0.91 inch OLED, buzzer Power supply: 3.7V (lithium battery) (The product appearance and printed words depending on the batch, but this does not affect use) Color: Black Material: plastic Package Contents: 1 * Pet RFID Reader 1 * USB Cable Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.