Justar Group (head company: Hangzhou Justar Environmental Technology Co., Ltd. ), located in Hangzhou city, is a corporation integrating the R&D, design, manufacture and sales of electronic products with great quality, such as kinds of speakers,water filters. We also provide customers with trade service. Establish in 2005, located in Shijie Town Dongguan, JUSTAR ELECTRONICS FACTORY has been specialized in R&D and manufacturing kinds of mylar speakers, loudspeakers, microphone units, and buzzers, used in wide areas like telephones, radio, MP3, MP4, earphones and headphones, monitor,...