Product: Necomimi Brain Wave Cat Ears Novelty, One Color Specifications Dimension: 4 x 8 x 4 inches Weight: 1.1 lbs Recommended age:  15-16 years Batteries: AAA batteries (4 pieces) Description: One pair of white cat ears Emotions move the ears Easy to operate With light touch sensors on the forehead and ear Uses 4 AAA batteries Research grade technology The Necomimi Brainwave Cat Ears is a pair of motorized cat ears that comes with a brainwave sensor. The motorized cat ears can be moved by way