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]

Core Viewpoint - The company is focusing on the development of acoustic technology and has diversified its product offerings beyond just electroacoustics [1] Group 1: Company Focus - The company specializes in the acoustic field, with products including MEMS microphones, speakers, and horns applicable to various 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]