Longjoin Group is a professional dedicated to the global audio and video industry, to create a professional music and cultural industry integrated platform for the enterprise. In 1989, Longjoingroup started its career in Guangdong province. After 30 years of hard work and 30 years of hard work, today's Longjoin group, has developed into a music, cultural industry and R & D, manufacturing, sales, services, cultural communication, Music Experience, training and other integrated development of high-tech group, it has 48 subsidiaries and more than 300 patents.