Dual-frequency card reader, strong compatibility, supports two-frequency tag identification, used for animal breeding management, such as cattle, pigs, fish, etc., also suitable for access cards, work permits, and other common items. 1.44inch color large screen, clear operation functions, even in the hot sun, can be clearly displayed, and there is a buzzer prompt when reading. Built-in lithium battery, large capacity and worry-free battery life, 800mAh rechargeable lithium battery, long-lasting battery life, automatic sleep, more power saving, can work continuously for 6 hours. Can store 1,000 pieces of information, using high-performance chips and processors, can meet the needs of farms and pet stores. Three-key position for easy operation, three function buttons, intuitive and easy to operate. Tag format:EMID, -B (ISO11784/85) Working frequency:134.2Khz/125Khz Standard:ISO11784/85 Reading time:Less than 100ms Reading and writing distance:2-12mm glass tube tag 8cm Reading and writing distance:30mm animal ear tag 20cm (related to tag performance) Signal indication:OLED screen, buzzer Power supply:800mAh 3.7V (lithium battery) Storage capacity:1000 messages Communication interface:USB2.0, wireless 2.4G, Bluetooth Working temperature:-10-50 Storage temperature:-30-70 Colour:Black Material:Plastic Package Contents: 1 * RFID Reader 1 * Charging Cable 1 * Chinese and English instruction manual 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.