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. 6.Mini & Metal: This mini car charger is compact and does not take up space. 7.Stable Connection: This cigarette lighter adapter has an enlarged copper cap, good electrical conductivity, and more stable. 8.Safety Protection: The car charger adapter has protection mechanisms such as soft start, input over-voltage protection, input under-voltage protection, output over-current protection, output short-circuit protection, and over-temperature protection to ensure the safety of you and the vehicle. Specification: Material: PC Environmental Protection Material Input: 12-24V Output: 4 USB 5V-15A USB1: QC 3.0 USB2: super USB3: 3.1A USB4: 3.1A PD:super The package contains: 1pcs* car charger