Advantage: 4-Port USB charging ports with 5.2A total output enables you to rapidly charge 4 devices simultaneouslyThree 12V/24V cigarette lighter sockets provide a total power of up to 200W, enough for simultaneous use of a variety of portable appliances in your vehicleMonitoring your car battery by the LED meter freelySmooth and shiny plastic surface with streamlined appearance, upgraded plug can stay in your car socket securelyDesigned with high protection, built-in 3.15A fuse and protective circuits prevent the product and your devices from overheating and overcharging, uninterrupting performance of navigation and media streaming