Voice broadcasting has real-time shouting and task execution (music, warning, notification, text) functions, which can be switched at any time. The system client software is simple and elegant, flexible, and supports up to 48kHz and 320kbps audio streams (standard to extremely high quality), as well as MP3, WAV, AAC, WMA and other audio formats. Through the hand microphone, one-key shouting can be realized, and warnings or notifications that need to be played can be run. It plays an important role in environmental protection publicity, crowd evacuation, danger warning, public broadcasting, on-site command and other scenes.