Shenzhen Handa Industrial Technology Co., LTD., founded on December 9, 2015, is now located in 2605 Huichao Technology Building, Jinhai Road, Xixiang Street, Bao 'an District, Shenzhen. The legal representative is Liao Zhiju. Online business projects include: electronic sound calibrator, electronic effect device, metronome, speaker, wireless audio instrument accessories, wireless mouse, mobile power supply, electronic products research and development and sales; Sales of machinery and equipment; Domestic trade, import and export of goods and technologies. It also includes the production and processing of electronic sound calibrators, electronic effect devices, metronomes, speakers, wireless audio instrument accessories, wireless mice, mobile power supplies and electronic products.