With Aroma Fan and Light Reward all you need to do is press a light and you will be rewarded with a pleasant smelling fragrance which is great for memory as you can associate certain smells to certain colours or environmentsAroma Fan and Light Reward is good for auditory and visual sensory input for those that need a little bit extra. The fragrances can calm and relax as well which is great for children who need this to relax sooner.