It sounds like a musician’s dream: a new device that turns electronic magnetic fields (EMFs) into weird, freaky, demonic sounds.

It’s called the Eternal Research Demon Box and it uses a proprietary system of inductors to translate those EMFs into sound. Stick any electrical device near enough to it and the Demon Box ‘plays’ it.

A simple tuning fork sounds like a theremin, an electric drill imitates the Aphex Twin. The mere proximity of a smartphone is enough to usher forth the sort of sounds the BBC Radiophonic Workshop once slaved for months over.