YUZUN is a brand of Shenzhen lingbiao technology development Co., Ltd,the campany is dedicated to research CCTV imagecoding anddecoding,professional security equipment,security systems,netword software development,production,sales and service of high-tech security company,is committed to digital security research ,development and production,launch a series with independent intellectual property rights of the digital,networded,intelligent video surveillance products served to mankind,the company strictly according to ISO9001 quality system to implement production,the products passed the CE,FCC,RoHS,and other international quality certification,perfect after sales service system,assured to buy.