Shenzhen Howell Advanced Technology Co., Ltd, is the core company of China An-Xin group( stock No. 01149HK), who provide standardized Intelligent Surveillance Product (ISP) and customized Intelligent Surveillance System (ISS) globaly, We are both Intelligent Surveillance Product Supplier and Industrial integrated solution service provider.Please contact sales04(at)cctvhowell.com for more products infomation.