All-In-One International Travel Plug Adapter with Dual USB Ports…. The COMPANION Travel Plug Adapter is a small pocket-sized power adapter for worldwide electric ports convenience. It provides plug adapters for use in more than 150 countries, so you’re never stranded without charging your devices. The COMPANION travel adapter is easy to use, with slide-out power plugs that ensure you won’t lose any vital pieces, in a compact, self-contained unit that eliminates any hassles. This all-in-one plug adapts power outlets for laptops, chargers, and similar devices, and features a safety release button and built-in fuse to ensure safe operation.