Shenzhen Chenghui Technology Co., Ltd. was established in 2013 and is located in Shenzhen, Longgang District, Guangdong Province, China. We have 10 senior industrial designers, electro-acoustic engineers, senior electronic engineers, and high-quality R&D teams covering ID, electronics, software and other fields. The company's main products are customized products, sound chips/modules, sound buttons, music movements, sirens, etc. One-stop service or OEM service can be provided. Welcome to negotiate business.