Our campany Guangzhou Shengkai Audio Equipment Co. Ltd established in 2005.Specialized in the R&D, production, sales and technology consultation of professional Audio systerms and KTV loud speakers Units  (including B&C woofer speaker). .In 2012,its brand ANDUN wons the titles of Chinese Excellent products,AAA Enterprice for quality,Service and Sincerity and 2012 HC Ten Super Quality Accesseries suppliers.