With the rise of new-energy vehicles and demand for a healthier in-vehicle lifestyle, automakers increasingly focus on comfortable and relaxing mobility experiences. The in-cabin sonic stress-relief system provides wellness support for professional drivers, long-distance drivers, family trips, and young consumers who pursue technology and quality of life. Sonic massage helps promote blood circulation and relieve long-distance driving fatigue. It can synchronize with movie soundtracks for an immersive 4D cinema experience and, during breaks or waiting periods, work with cabin fragrance and air conditioning to guide occupants quickly into a nap state through deep-relaxation frequencies.