Introducing the Promate VolTrip Duo 3.4A Fast Charging Car Charger, the perfect solution for keeping your devices powered while on the go. This car charger features dual USB ports with a total output of 3.4A, allowing you to fast charge two devices simultaneously. The smart output technology automatically detects the connected device and delivers the optimal charging speed, while the short circuit and overcharge protection ensure the safety of your devices. With its sleek and compact design, the Promate VolTrip Duo is perfect for use in any vehicle, providing convenient and efficient charging for all your devices. Say goodbye to low battery woes and keep your devices powered up with the Promate VolTrip Duo 3.4A Fast Charging Car Charger.