Voice activation is a technology that allows devices to respond to spoken commands. This feature is commonly found in smartphones, smart speakers, and home automation systems. Users can perform tasks like making calls, playing music, or controlling lights simply by speaking, making it convenient and hands-free. The technology relies on speech recognition algorithms that convert spoken words into text. Once the device understands the command, it executes the desired action. Popular examples of voice-activated systems include Amazon Alexa, Google Assistant, and Apple Siri, which help users interact with their devices more easily and efficiently.