Established in 1995, Longhorn Technology Co.,Ltd is one of leading R&D manufacturers of Digital products (PMP and GPS), Home & Auto security equipment in China. We have won the TUV ISO9002 certificate in 1998, and CE approval , e-MARK and UL approval for many products, and past BSi QS 9000 & ISO9001:2000 in 2003. Now, the brand "Longhorn" is enjoying a good popularity in many countries and areas.