Shenzhen Greatwall Huayun Technology Co., LTD. is established jointly by the Greatwall acoustics division and Shenzhen Sanjing Electronics Co. LTD., integrates high quality manufacturing platform of Greatwall Group and the leading technical superiority in acoustic industry of Sanjing Company. The manufacturing base is located in Shenzhen Greatwall computer base. The Greatwall Huayun acoustic products covers all home audio categories: iPhone docking, wireless audio, soundbar, flat art speakers, furniture speakers, portable speakers, multimedia speakers, etc.