This pet chip reader is equipped with a 0.91-inch OLED display, supports BT 4.0, and can read and store 128 pieces of data. It is suitable for small animal management, resource management, railway inspection, and other scenarios. Features: Dual-frequency reading: Supports 134.2/125Khz two frequencies of tag recognition to meet different usage requirements. OLED display: 0.91-inch high-brightness OLED display, clear even in the dark. Multiple upload modes: Can store 128 pieces of data, support one-click upload to the computer. Wide use: Suitable for small animal management, resource management, railway inspection, and other scenarios. BT 4.0: Supports BT 4.0 for convenient and fast data transmission. Specifications: Working frequency: 134.2/125Khz Tag format: FDX-B, EMID(ISO11784/85) Induction interval: < 100ms Power supply: 3.7V (lithium battery) BT communication: BT 4.0 Working temperature: -10C~50C / 14F~122F Storage temperature: -30C~70C / -22F~158F Appearance Specifications: 13.5*6*1.4cm / 5.3*2.4*0.6in Weight: 110g / 0.24lb Package List: 1 x Pet Chip Reader 1 x USB Charging Cable 1 x User Manual