Empire Science & Technology Development Co., Ltd is a high- tech business specializing in the design, developing, manufacturing and marketing of a full range of intellectual visual building talking system and security alarm system. The company owns a factory above 5,000m2, five automatically producing lines of equipment, and a team up to 300 members and more than 50 experts. The company has now succeeded in the developing of wireless video door phone system to be the first manufacturer owning this technology in the world. The product has broken off the distribution limit of the original model and has opened a new home appliance market which providing a huge market opportunity. All products of the company have reached ISO9000, CCC and CE etc. standard. With the products in excellent quality & full variety and best service, the company has constructed a mature domestic and oversea sales distribution web and has ranked itself as one of the biggest manufacturers in security field in China.    Empire believes ?no pay no gain?, insists working hard and being honest to every customer and cooperator.