Newest Upgraded Converter for 110V/ 120V Devices2prong AC converter socket can step down foreign voltage from 220240V to 110V/120V, designed for US standard devices when Americans travel to 220240V countries, such as Conair/babylisspro hair styling tools (hair straightener, flat iron, curling iron) and hair dryers (except Dyson), steam irons, electric kettle etc. 10A Adapter for All Dual Voltage Travel Devices3prong adapter socket can't convert voltage, can work with dual voltage (100240V) devices in every country, such as cell phone, camera, iPad, laptop, Dual voltage hair tools (hair dryer, straightener, flat iron, curling iron, hair Clipper, electric shaver), Dual voltage (CPAP, electric toothbrush) and other Dual voltage devices. Smart Dual USB & International CompatibilityDual USB ports (DC 5V/ 2.4a) are compatible with almost all USB charging devices like Apple iPhones, Samsung Galaxy, Sony, Nokia, HTC, LG, Huawei, ZTE, digital Camera.... US/EU/UK/AU worldwide plugs ( each supports 10A Max ) covers over 190+ countries, such as Mexico, Germany, Japan, China,Korea,India,Italy,Brazil,Europe, Asia, the Middle East, Etc. Silent Working & Safety AssuranceInstead of noise fans, we adopt new cooling technique, it is more quieter and stable. Built in auto shutoff protection in case of over voltage / over current / short circuit / over temperature / over load and Surge Protection. Patent Reserved. Products passed and implemented ROHS, FCC, CE, ETL certification. Lifetime Guarantee & Best Customer Service Best of all, by buying with us, you'll be working with a company that has a full lifetime guarantee on every product that leaves our factory. Better still, we offer full customer support for all of your needs. Bottom line, it works, or we offer best service.