Top Sonic Development is a Chinese company, with administrative offices in Central Hong Kong, and manufacturing facilities in Shenzhen, China.   Product design, engineering moulding, manufacture and packaging are all based in Shenzhen. The factory employs up to 1,000 workers at peak times, and has manufacturing capacity for over 500,000 pieces per month.

  Our speciality is helping International Distributors to design world class products specifically for their local market conditions. This may mean changing design of existing products, changing colours, adding or removing features, and designing packaging to suit special requirements of client.

All products meet required quality and safety standards (CE, TUV, UL etc). The factory operates to ISO/9001 international quality standard. Working conditions in the factory meet the highest international standards for health & safety and standards of care for production workers.

  We are proud of our skills and our record, and we can offer you a fast design service, excellent quality control, quick delivery and best possible costs.

We also offer factory design products, which is of interest to clients who do not want to order in enough volume to justify designing their own products.   We invite you to look at the story of a product to see how our company can help you to design a winning product for your market.