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Now day's usage mobile devices are increasing in numbers. It can provide a foundation for improving the communication, learning and teaching environments. However, not all potential users have the capabilities that allow them to use the existing methodologies. To improve the search and navigation of various application and features of mobile devices we have proposed a model that entails the hands-free voice navigation system will be helpful for the visually challenged people. This model provides the opportunity to operate the mobile devices without using the keypad.