This plug adapter is for European electronics devices that have 2 round prong and converts them to the America style with 2 flat parallel prongs. Most electronic devices have a 110v-220v transformer or dual voltage (110/220 VAC) for worldwide use. If your devices have it， all you have to do is simply plug this adapter and you can use it in the USA.                                    Features            Unique meshing technologySingle phase two poles with earthing pole plugHigh quality conduction copper sheet， flame resistant PC outer shellTwo-pin plugEasy to carry， suitable for international travelingCompatible countries: Europe， America<br><br>                                                            Specifications            Socket    European(2 holes)    <br>Plug    US(2-prong)    <br>Dimensions    (1.57 x 1.38 x 0.53)" / (4 x 3.5 x 1.35) cm (L x W x H)    <br>Weight    0.28 oz / 8 g    <br>Color    Black    <br>Type    Euro to US Standard    <br>                                                            Package Includes            5x EU to US Travel Charger Converter Adapter Plug