The TWIST World Adapter DUO ensures worldwide compatibility for travelers everywhere. The TWIST World Adapter DUO unique Twist & Lock mechanism allow user to simply twist and select the right power socket no matter where they are. The Twist World Adapter DUO’s universal power outlet allows provide AC power connection for electronic devices like notebook chargers etc… and the built-in Max. 3.4A dual USB charger provides higher power charging for smartphones, tablets. All-in-one piece design and charge up to 3 (or 4 for the plus version) devices simultaneously in over 150 countries from a single outlet. This powerful accessory is a lifesaver in locations where finding multiple wall outlets can be a challenge, and where charging your devices quickly is mission-critical to your next meeting or presentation. The Plus version adds the Apple connector for that allows you to connect your MacBook chargers.