At three o'clock in the afternoon, Jiagu Kasha stared at the spectrum analysis chart on the computer screen, and typed out a series of parameters on the keyboard with her fingertips. The "noise reduction microphone sample" test audio that she had just received this morning was playing in a loop in her headphones. As the company's youngest purchasing manager, she is holding the most important purchase order of the year - customizing a complete set of audio collection and amplification equipment worth RMB 23 million for a top domestic orchestra. The core "line array speakers" and "multi-track recorders" must complete supplier selection, sample testing, and contract negotiation within three months. Once delayed, not only will the orchestra's annual tour be affected, but the company will also have to pay liquidated damages of up to RMB 5 million.