The emergence of ultra-thin flat-panel speakers and flat-panel audio makes it possible for family groups (home theaters and background music) to develop in an ultra-thin direction. From 1998 to 20 12, flat-panel audio has also experienced several development stages. From 1998, Sannuo Company introduced flat-panel audio, which was inherited and developed by Hualong Sheng Di (DS) and Tuomicrogram (TVC). In 2008, Chengdu Tian Xiang (HVS) developed China's own flat-panel pronunciation technology "VT", which is called "the fifth-generation flat-panel pronunciation technology". The development of flat-panel audio technology in China is becoming more and more mature, and the use of thin mural and ultra-thin audio in the family is becoming more and more mature! Embedded audio, the emergence of embedded audio originated from Chengdu FREENOTE in 1998. After more than ten years of development, embedded audio has played a great role in "home central network audio system" and "embedded home theater". Chengdu Tian Xiang (HVS) combines the advantages of flat-panel speakers and embedded audio, and develops a new generation of home audio system "Home Health Audio System", which is a tentative step for the development of home audio!