Product description: Product Name: Digital display car charger Input voltage: DC12V-24V Output voltage: DC5V Output current: 3.1A (port 1 is 1A, port 2 is 2.1A) Color: black, red, rose, silver Size: 70*25*35mm Product Features: 1. Intelligent detection of car battery voltage. 2. Real-time digital display of charging current. 3. Dual USB ports work at the same time, can charge multiple devices at the same time. 4. Automatically adjust the output current according to different equipment. 5. Built-in large load fuse to fully protect equipment safety. Reinforced cigarette lighter plug to prevent falling. 6. Soft LED digital display does not hurt the eye. The design is sleek and simple and pretty.