Shenzhen Sion Electronics Co., Ltd. is engaged in the R&D, production and sales of automotive GPS navigation systems, car audio systems and other electronic products since 2005. We enjoy convenient transportation and a beautiful environment, located in Bao'an District, Shenzhen City. Cooperating with many technology institutes, we are able to develop new products to meet market demands in the field of car navigation, audio and video entertainment. As a rising star in the car audio and ...