参加的一个新能源汽车国际会议，里面有个专家讲的挺好的。厚着脸要来了pdf文档(An International Conference on new energy vehicles attended by an expert was good. A big face is coming to the PDF document.)

国产无线通信芯片，KTV，会议，无线麦克风通信射频芯片(Domestic Wireless Communication Chip, KTV, Conference, Wireless Microphone Communication RF Chip)