Shenzhen HQS Technology Co., Ltd is professional manufacturer specializing in Car Black Box, Sport DVR and Digital Peephole Viewers. You can see online at www.hqstec.com. We are the Gold Supplier on the alibaba.com for 4 years. As an OEM/ODM service supplier, for the past 4 years, HQS has accepted various kinds of OEM/ODM orders primarily from overseas markets with the excellent qualifications below: 1.Strong R&D ability(No. of R & D staff:10) 2.Effective production team 3.Strict ...