This transformer-type voltage converter is designed for continuous use with 110-120 volt appliances that require 85 watts or less, while traveling in countries with 220-240 volt electricity. Includes an extended round pin European appliance plug designed to fit recessed sockets found in Continental Europe. Use with 110-120 volt North American appliances and electronic devices such as:AC/DC Power AdaptorsAnswering MachinesBattery ChargersCordless TelephonesInk Jet PrintersOral Hygiene DevicesPortable Fax MachinesStereo Systems – SmallVCR/DVD PlayersVideo GamesNOTE: DO NOT use this converter with Hair Straighteners. Their actual wattage usage during heat up is three to four times the rated wattage and can damage this converter. Style: V85 Dimensions: 4"H x 2 3/4"W x 2 1/2"D Most modern travel gadgets (including smartphones, laptops, and tablets) are dual-voltage. A dual voltage device will automatically convert to run on other voltage systems. This means that if you try to use a converter on a device that is already dual-voltage, you may end up irreversibly damaging your device. It is thus imperative for you to check the label or owner’s manual of your device to determine whether it is dual voltage.