3 tệp âm thanh miễn phí bản quyền cho "Xây Dựng Doanh Nghiệp"

This is the ambience of a washroom near the parking lot of a small business building. You can hear the hum of the air-conditioner and the distant chirping of a large flock of birds. I recorded this with my lenovo laptop's built-in microphone.

Audio recording of a paper press in a newspaper company.