How is the relationship between Sonic Technology and Haixin

No direct relationship. Soundwave Technology and Haixin Technology are two separate companies with no direct relationship. Sonic Technology is a technology company headquartered in Shenzhen, Guangdong, China. The company specializes in the research, development and production of smart audio and wireless communication technologies, and offers products including Bluetooth headphones, speakers and smart audio. Haixin Technology is a company based in Foshan, Guangdong, China. The company is engaged in the research, development, production and sales of electronic components and electronic devices, with products involving including capacitors, capacitive touch screens, power adapters and others.