Worring about the charging problems during international travel? No, don't necessary at all. This converter is the BMW of the charging world. With unique direct EU plug and 4 adapters, it is the top choice for international travel, especially for Europe travel. Not compatible- hair dryer, hair straightener, coffee machine, etc. (Regardless of their wattage) Use independent research and development of patented technology, bestek converters could convert the voltage from 100 to 240 volts to 110 volts for American appliances, with Up to 92% conversion rate, 50% higher than others. BESTEK is the only ETL-certified brand, in the converter market, and NRTL safety-tested and upgraded hardware provides complete protection for you and your devices. This converter comes with over-current, over-load, over-heat, and short-circuit protections. And 24-month warranty & safety guaranteed. With 250W output power, 4 USB ports, and 3 AC ports, this inverter can charge 7 devices at the same ti