Yes, you can use the 30W Dual-Port Wall Charger when you travel internationally. It supports a wide voltage input range of 100V to 240V, so it works with most power systems around the world.

The one thing to check is the shape of the wall outlet. The charger plug is built for one region outlet type, so in a country with a different outlet you will need a simple plug adapter that matches your destination. The plug adapter only changes the physical shape of the plug. The charger handles the voltage on its own.