Car usb Charger Multi Port: We have upgraded this car charger with 4 charging ports,1×QC3.0 fast charging,1×PD Compatible iphone fast charging, 2×2.4A general charging, Ameet multiple devices charging simultaneously, with intelligent shunting and safe and fast. Super fast charging: We equipped two 2.4A and one QC3.0/PD charging ports in this charger, refreshing the charging speed,80% faster than the ordinary car charger between, and compatible with most cell phones,to achieve the real sense of super fast charging. Real-time voltage monitoring: This charger comes with an LED digital display voltage meter, so you can monitor the voltage in your car at any time and keep track of the safety of your car's electrical system.It allows you to take timely action in case of abnormalities to avoid breakdowns during driving. Heat dissipation & anti-skid:We designed four diamond-shaped heat dissipation holes on this charger,greatly improving the efficiency of heat