Speakers are audio devices that convert electrical signals into sound waves. They consist of a driver, a cone-shaped diaphragm that vibrates to create sound waves, and an enclosure that houses the driver and enhances the sound quality. The driver is connected to an audio source, such as an amplifier or receiver, which provides the electrical signals that cause the driver to vibrate. As the driver vibrates, it creates sound waves that are amplified and projected by the enclosure, resulting in audible sound. Speakers come in various sizes, designs, and configurations, including bookshelf, floor-standing, and in-wall models. They are used in various applications, such as home entertainment, live sound reinforcement, and professional audio production. The quality of speakers is determined by their frequency response, sensitivity, power handling, and distortion level, among other factors.