See What Makes Your Ears Wiggle. Show the world what?s really on your mind and impress your friends with some of the most advanced brainwave technology available! Necomimi?s cat-like reactive movements show how interested or relaxed you are in real-time. It?s a fun, quirky addition to parties, cosplay, bachelorette weekends and tailgating at your favorite sporting event. Anytime you want to entertain your friends and family, wear Necomimi!