Billion Elite Enterprise Limited is specialized in producing high quality speaker, microphone, and buzzer. We have factories Zhe Jiang, Jiang Xi Shenzhen. Our office Shenzhen.Billion has a long history of more than 10 years. standard plant (above 3 ...

I\'m an excellent original equipment manufacturer (OEM) of custom loudspeaker. we specialize in car speaker, subwoofer, speaker cabinet. our company establish at 1992, oversea trade office hongkong, have two factory located ningbo and shenzheng ...