1、APPLICABLE MODEL: This charging hub is suitable for Mini3 Mini3 Pro Mini4 Pro drone batteries with strong compatibility, which is convenient for users to choose and use. 2、ABS MATERIAL: The shell is made of ABS material, which is shock proof and dust proof, and can effectively protect the internal charging circuit and extend the service life. 3、PORTABLE DESIGN: The compact size makes it suitable for indoor or outdoor use and easy to carry during traveling. Users can easily put it into the bag and charge the drone battery anytime and anywhere. 4、DIGITAL DISPLAY SCREEN: This drone battery charging hub is equipped with a digital display screen. Users can visualize the battery level easily. 5、ENHANCE CHARGING EFFICIENCY: Multiple batteries are charged together, prioritizing the charging of high power batteries, effectively enhancing charging efficiency.