Shenzhen chuangshitong Electronic Technology Co., Ltd., is a hi-tech company specializing in R&D, manufacturing and marketing of various car audio & video system,and car rear view system , sports DV , including car dvr ,car black box , car camera recorder, gopro similar action camera and so on , this year, in order to reply the phone more convinent when driving , we develop a new product , smart watch phone . With 8 years in the industry,we manufacture in ISO9001:2000 certified ...