electromagnetic radiation

n : radiation consisting of waves of energy associated with electric and magnetic fields resulting from the acceleration of an electric charge*

I kept coming across this word pair in learning about the specifics of sound recording, and liked the “space age” feel it imparted to the “name brand”.  I liked the west coast trend of using “Recorders” as opposed to “Recording Studio(s)”.

*Source: WordNet 1.6, 1997 Princeton University