Shenzhen Langwei Technology Development Co., LTD is a professional manufacturer specializing in the CCTV surveillance industry."TYALUX" Brand we developed have advanced function , easily upgrade and have gotten a good reputation from domestic and oversea ***** order to provide our global clients with high quility products , we devote ourselves to quilty , technology and service to provide perfect before sale , selling and after sale ***** we devote ourselves to build a harmonious soceity of security, safety and satisfaction.