Additional Details ------------------------------ Product description: Mindflex is a toy by Mattel by which a child uses their brain waves to steer a ball through an obstacle course. Brain waves are registered by the enclosed EEG headset, which allows the child to control an air stream by concentrating, thus lifting or lowering a foam ball.[1] The game was released in the fall of 2009,[2] and uses the same microchip as the MindSet from NeuroSky and homebuilt EEG machines.[3]