Sound indicators are auditory signals that provide information about specific conditions or events. They can be found in various settings, such as vehicles, appliances, and electronic devices. For example, a car's turn signal emits a clicking sound to alert drivers and pedestrians when the vehicle is about to turn. These indicators serve as important communication tools, enhancing safety and awareness. In addition to vehicles, sound indicators are also used in smartphones and computers to notify users of incoming messages or alerts. By using sound, these indicators help people respond quickly to important situations.