Just the look of it looks weird but the reason for the them is actually quite grand in concept.
Dyson is actually creating a headset, for real, called the Zone. As you can see it will also have an air purifier technology build in as well. The goal of the Zone is to make living in urban spaces more comfortable by attempting to mitigate both air and noise pollution
Although I have not been to cities that has such air pollution, I figure it can get pretty bad.