In the above video, the Japanese project Neurowear showcases its Necomimi (a stylized romanization of the Japanese term for "cat ears") prototype this week. Rather than a standard headband with cat ears on it, Necomimi claims that the product detects the brainwaves emitted by the wearer and moves the ears accordingly — twitching, folding down, or perking back up. The footage was taken at Smile Bazar [sic], an event that is taking place in Shibuya, Tokyo from April 29 to May 8.

Neurowear also launched the following commercial, which reveals that concentration will cause the ears to perk up, and relaxing results in them folding down.

Neurowear has not yet revealed when it will sell the product or what its price will be. Mattel offers a similar brain-computer interface toy called Mindflex, and Uncle Milton sells the related Star Wars Force Trainer toy.