With the progress of science and technology, computer peripheral products are constantly evolving. The use of touch rather than mouse operation in mobile devices such as tablets and smartphones has gained popularity because of its convenience for browsing the Internet and using apps or communication software. However, the mouse remains an essential piece of equipment for using computer software to design products and playing computer games. Wireless mice were the subject of this study, which investigated the optimal size, color, and packaging style for various mouse products. First, this study involved assessment and comparison of the sizes of commercially available wireless mice. Five sizes of mouse were selected. We then designed experiments, and participants performed tasks and completed questionnaires. The results were collected and analyzed to select the optimum product size for users. The study examined the user's psychological and emotional responses to mouse color. By conducting semantic differential analysis, 16 colors were selected for psychological testing, and the results were analyzed to identify the most suitable color. Finally, we investigated the optimal packaging styles for mouse products. In the experiment, eight styles were combined with 10 colors to produce 80 packaging styles. We use the Likert scale to collect data. The results show that the black mouse and the size of 64.5 x 95 x 35 mm(3) are the most popular.