Many designers already developed special devices to help disabled people living their precious life. Many smart cities policies also considering many applications that are specially developed for impaired people. However not many *ordinary' embedded system that being developed with the consideration that their user might be having some degrees or disability or impaired. This paper is addressing small changes in design which can be implemented ■\ ith little effort which could improve the user experience aspects especially lbr disabled user. The small changes involve the additional sounds which can be in the form of beep sounds. This capability can be deployed using as simple as the buzzer. This paper also proposes the measurement tools for UX1.11. The measurement is based on time elapsed to learn the new interlace. t scm' is given the blind test for new interface and the elapsed time is measured as the parameter for understandability. The faster the user understands the system interface the better the t..fX 111 score. The metrics is not only applied to embedded system for disable user but might can also applied to normal embedded system to create better UX