HONG KONG TONGDA E-COMMERCE CO., LIMITED is a manufacturer of speaker and earphone, bikes with well-equipped testing facilities and strong technical force.With a wide range, good quality, reasonable prices and stylish designs, our products are extensively used in many industries.Our products are widely recognized and trusted by users and can meet continuously changing economic and social needs.We welcome new and old customers from all walks of life to contact us for future business relationships and mutual success!