【Fast and Efficient Charging】Experience the power of our upgraded 12V USB outlet with four ports—allowing you to charge four devices simultaneously（ 2 PD 12v usb Port and 2 QC 12v usb Port） 【Durable and Premium material】Crafted from advanced aluminum alloy, our 12 volt Usb power outlet is not only strong and sturdy but also features anti-scratch technology, ensuring it maintains a sleek appearance even in rugged environments. Say goodbye to flimsy plastic sockets! 【Digital LED display】Keep an eye on your vehicle's health with the built-in blue LED voltmeter display. It automatically monitors your car's battery and electrical system, giving you real-time voltage readings to ensure safety and reliability during your travels. 【Universal Compatibility】Designed for versatility, our car 12v Outlet USB charger is compatible with a range of vehicles including USB Socket 12v cars, boats, motorcycles, and RVs. Charge all your essential devices such as smartphones, tablets, and gaming controllers with ease! 【Easy Installation】Enjoy hassle-free installation with our 12V USB charger, which comes with a 60cm fused cord, spare fuses. Whether you want to mount usb port in your car or boat, setting it up is a breeze—no professional help required! Upgraded 12V USB Charger with 4 Ports - Aluminum Alloy Car Outlet with LED Voltmeter for Cars, Golf Carts, Boats, RVs, Trucks, and Motorcycles