Shenzhen wanshixing electronic CO., LTD is a specialized manufacturer in video doorphone system. Our company gathers to develop、manufacture and supply for integral whole ,with advanced equipment, strong technique strength. Our main products are: CCD,CMOS B/W COLOR camera,4" CRT flat tube(import or manufacture by our own country ) module,4" \5.6" TFT color monitor module ,Bw video doophone for villa, color video doorphone, video system. Our products are checked by the security and alarm electronic products center of police, and get the CE authentication of EU. Our products sells all over the world, and our customers are always satisfied with the quality of our products and the service after sale.