The registration address of the qingxi city of qingdong city is at no. 292 weihai road in qingdao city, shandong province. The registration authority is the market supervision authority of the qingdao city of qingdao north district. The legal entity is represented by yang qi, and its activities include the installation and maintenance of surveillance equipment; the installation of network surveillance equipment; the development of software; internet information counselling; and distribution and retailing of control equipment, security and surveillance equipment, security and surveillance systems, control and equipment and fingerprint security products. (projects subject to legal approval may not operate without the approval of the relevant department)