The paper analyzes that we study the reading paths and preferences of visually impaired groups, compare the current situation of audiobooks for visually impaired groups on the market, analyze the pain points of volume and font adjustment and unreasonable button design that users encounter when using such audiobooks, and base the product design on handheld portable audiobooks to find out The product design is based on the handheld portable dictaphones, and the feature that people will change the distance between the product and themselves according to the volume and the size of the pictures, and add the sensor that can measure the distance between the human face and the dictaphones to realize the adaptive adjustment of the font and volume according to the change of the distance, and finally produce the product prototype to achieve the purpose of intelligent adjustment of the volume and font.