Get the maximum convenience in a minimum space using the Universal AC Power Adapter Plug. Please make sure your device carries a electrical converter when you travel to other countries with different electrical output. If your device requires a electrical converter, please pair up the original electrical converter with this Universal AC Power Adapter plug.The most annoying thing is charging your MP3, your laptop or you cell phone while you are traveling out of your country where it don't apply the power source in your own country.To solve this problem, we would recommend you this universal AC power adapter.Yes, you need universal AC adapters while you are out of you country. This universal AC power adapter offers you the perfect "all in one" travel companion. It works with most devices that can be charged with the USB port. It is a must have for people who needs to charge their MP3 players frequently. Don't miss this universal AC adapter, bring it with you when you are traveling all around the world.