Yes According to official website of China Southern Airlines, the stereo can be checked, but the volume of the stereo can't exceed the volume requirements set by the airline. If the volume exceeds the specified requirements, the plane may not be consigned, and the specific consignment requirements can be inquired from the airline that took the flight. Audio refers to a set of audio system that combines electrical equipment to produce sound. The development history of audio technology can be divided into four stages: electron tube, transistor, integrated circuit and field effect tube.