Switzerland based SKROSS® is the leading manufacturer of premium travel adapters and innovative charging solutions for users of mobile devices around the world. The World Adapter PRO World & USB is the most powerful travel adapter in the world. The compact 3-pole travel plug with an integrated USB charger works in over 150 countries. Ideal for connecting even earthed devices such as laptops and hairdryers anywhere in the world and charging USB devices simultaneously. Input voltage adapter: 100 V - 250 V. Max load: 10 A. USB output: 5 V / 2100 mA. Charge notebooks and smartphones, like iPhone, Blackberry and Android based phones, and other devices worldwide.