With the popularity of intelligent cars, users' understanding of the value of cars has gradually changed from a mere means of travel to a "third living space". Both auto manufacturers and car users have put forward higher requirements and interactive experience for the "audio system (acoustic system)" of automobile intelligent cockpit. To this end, with 22 years of professional audio system technology advantages, Tonwel comprehensivelyadvance automotive audio technology, and developed a complete set of automotive audio system solutions covering "automotive loudspeaker, vehicle power amplifier, AVAS, vehicle tuning technology, acoustic signal processing technology".