Shanggao County is affiliated to Yichun City, Jiangxi Province. It is located in the northwest of Jiangxi, in the middle reaches of the Jinjiang tributary, in the east of Gaoan City, in the west of Wanzai County, in the south of Yushui District, Fenyi County, Yichun City, and Yuanzhou District of Xinyu City. , North borders Yifeng County. The total area is 1350 square kilometers. According to the size and function requirements of the conference room, the Beilarly engineer chose the K series, so that the sound field of the entire conference room was not only evenly covered, but also the sound quality was clear and high fidelity, making the mid-range round and full, the high frequency is delicate, and the low frequency Substantial flexibility, to ensure that the sound of each corner of the meeting room is thick and the tone is bright and prominent