共达电声(002655.SZ)：目前布局车载无线充、车载USB充、汽车喇叭、毫米波雷达模组等产品

Group 1 - The company focuses on the development in the acoustic field, specifically in MEMS microphones, speakers, and horns that can be used in related terminal products [1] - The company has also expanded its product lineup to include automotive wireless charging, automotive USB charging, car speakers, and millimeter-wave radar modules [1]