1, sound engineer, responsible for designing, installing and debugging sound systems to ensure the best sound results.
2, sound technician, responsible for maintaining and repairing sound equipment to ensure its proper operation.
3, audio salesman, responsible for the sale of audio equipment and accessories, to provide customers with relevant advice and guidance.
4, audio equipment purchaser, responsible for purchasing audio equipment and accessories to meet customer needs.
5, sound equipment installer is responsible for installing sound equipment and accessories to ensure that they are correctly installed and meet customer requirements.