Time goes back to the beginning of 2018 four years ago. At that time, the relationship between China and the United States had not broken, and the world economy was booming again. It was in this year that hidizs haidisi officially and directly cooperated with ESS Technology Inc., the top chip company in the United States. In the same period, the ap80 portable lossless music player newly launched by hidizs haidisi adopted the flagship es 9218 decoding chip of ESS Technology Inc., which has the...