A voice user interface (VUI) improves accessibility by allowing users to interact with devices or applications using voice commands. This technology benefits individuals with disabilities or those who find traditional input methods challenging. VUI simplifies access to information and services, making technology more inclusive. For example, smart assistants like Amazon Alexa and Google Assistant enable users to perform tasks such as controlling smart home devices, setting reminders, or accessing information through natural speech. By minimizing reliance on physical inputs, VUI empowers a broader population and enhances user experience in various contexts.