Dongguan A Friend Industrial Co,. Ltd, which is a company integrating audio design, development, production and sales as well as after sales service. It’s main products including all kind of home theater system, bookshelf speakers, bluetooth speakers, trolley speakers and professional stage acoustics. The products of the company have been greatly improved from outlook design to the sound quality since its establishment. More over most of design of home theater system series have been leading the market trend.