We couldn’t make something like this up…
This headwear has EEG sensors built into the headband, and the device is programmed to move the ears in various ways corresponding to brainwave activity. For example, the ears stand up when you concentrate. They were developed by neurowear in Japan, which states:
“Neurowear” is the name of our project to develop fashion items and gadgets using brain waves and other biosensor with “Augumented Human Body” as the concept. Other than the first project “necomimi”, we are planning to development other various items.

how do u buy them plz give me the link