Want more connections ? There's nothing like cordless, but an interconnection box is convenient when you have more to plug in and nowhere to plug them in. If you don't already have parts, it's off to the electronic supply store for a box, audio plugs, some wire,solder, and a soldering iron. The contacts of the plug heat up
quickly and can easily get hot enough to melt the plastic surrounding the center of the plug. It's not necessary to plug the box into anything : just plug everything into it. An in-coming line is optional. Boxes don't come with mountings, so putting on a way to mount the box onto anything is left to the user. Not needing a source of it's own, the box is totally portable much like multiple plug-ins for power cords. keeping this in mind a person can venture into hubs.