These small adapters attach to the prongs of your current charger so they’ll plug into a foreign outlet. In deciding which of these to test, we judged by size and available plug-type options.

You get a four-pack of adapters that give you a Micro USB port with this option. The price is super low, and considering these are small adapters, it’s a bonus to have a couple extra on hand.

The adapter itself only requires a USB 2.0 connection, so having a system with older hardware won’t limit its usability. Linksys is backing the WUSB6100M Max-Stream AC600 Wi-Fi micro USB adapter ...

“Housed in a small footprint and providing 5W of power, it is a low-cost solution for many personal electronics OEMs.” At 2.59 x 1.55 x 1.07 inches an weighing in at 3 ounces, the adapter features ...

The Belkin Soundform Connect is deceptively simple: a small adapter with wired audio outputs on one side, and support for Apple's streaming inside.