Japan Power Adapter: Type A plug adapter can work in America for 3 prong to 2 prong adapter, it is also compatible in oversea such as Japan, Philippines, Canada, Mexico, China, Thailand, Anguilla, Colombia, Acosta Erica, Cuba, Guatemala, Guyana, Haiti, Liberia, Panama, PeruMulti Plug Outlet Extender: 4 AC outlets are accept the standard N American 2 or 3 prong flat pin plug; Larger space makes 2 prong to 3 prong outlet adapter easier to use for all kinds of equipmentUSB Outlet Plug: Outlet converter 2 prong to 3 prong with 3 USB can detect charged devices and deliver optimum fast charging speed up to 2.4A (max), ideal for cell phone, Tablet, etc.The indicator let you know the power is on/offNote: Japan power adapter is not a voltage converter, US to Japan plug adapter only works on 100V to 250V voltage devices. When traveling aboard，please use dual voltage devices and check your devices before use, especially for hair dryer, straightener, curling ironsSuitable for Any Occasions: TESSAN 2 to 3 prong outlet adapter is very useful for older housed or offices. 2 prong adapter can be used in any indoor place with socket, especially for the bedroom, bathroom, dorm room and hotel; no surge protection, no cords, making plug extender fully cruise ship approved