In November 2022, Shenzhen Qiyin Electronic Co., Ltd. donated mask loudspeakers with a total value of 100,000 yuan to mo···
In April 2022, Shenzhen Qiyin Electronic Co., Ltd. donated mask loudspeakers with a total value of 200,000 yuan to more ···
On July 07, 2022, a lawsuit was filed against our microphone product with patent number ZL201930003687.8, and the rights···
On November 15, 2021, a lawsuit was filed against our conference microphone product with patent number 201830070383.9, a···