On December 5, 2019, the 3^rd China Quality Conference opened at Shenzhen. Jointly organized by the State Administration for Market Regulation, the People’s Government of Guangdong Province and Shenzhen Municipal People’s Government under the theme of “Quality, Evolution & Sharing”, the international event is the highest-level quality conference held by the Chinese government.

233621®, the own brand of Grandsun Electronics, and the masterpiece of Peng Jiugao, the national labor model, as one of 20 representative brands attended the conference. 233621 smart headphone with the features of comfortable wearing, strong noise cancellation ability and perfect sound successfully attracted the eyesight of guests from the whole world.