The Mole-Rat is an EMF audio device that allows you to explore the electromagnetic fields in your direct surroundings. You can change the sounds that the Mole-Rat produces by adjusting its additional volume and tone functions.
Use with headphones when exploring your invisible environment or turn it into a powerful experimental instrument by connecting it to an amplifier.

The Mole-Rat runs on a 9 Volt battery. An adapter for headphones is included.

Source: noizumashin