Describe: 1. LED display monitors the car battery voltage in real time 2. 4 USB supports simultaneous output with an indicator light, QC3.0 orange LED USB interface with fast charge. 3. Compatible with various models, the voltage input from 12 to 24 V supports the most popular vehicles on the market. 4. Compatible with all versions of QC technology. Charge all non-QC 3.0 phones, digital cameras and tablets at full speed. 5. The outer case consists of a high-gloss outer case and is oxidized, which is nice and does not leave any scratches. Specification: Material: PC Environmental Protection Material Input: 12-24V Output: 4 USB 5V-15A The package contains: 1pcs* car charger