Korvaa is the world's first microbe-grown headset. It was built through Aivan, a Finland-based design house in the attempt to create a device with only naturally-derived materials.
Difficult words:
Bioplastics: a type of biodegradable plastic derived from biological substances rather than petroleum.
Byproduct: something that is produced as a result of making something else
yeast processing lactic acid.
The earpieces: the part of a telephone, radio receiver, or other aural device that is applied to the ear during use.
Hydrophobin:they are known for their ability to form a hydrophobic (water-repulsive) coating on the surface of an object.
Mycelium: Mycelium is the vegetative part of a fungus or fungus-like bacterial colony.
Device: instrument, tool.
Derived: to trace from a source or origin.