It is very difficult to find a perfect camera,
At fist, every person has different standard about define about it.
maybe most people simply consider that more functions stands for more advanced and perfect, acctually not, the better products are needed to continuous to modify, we are a video door phone producer, and many customers form US, Canada, EU, needs customize products, they confirmed about our products' quality first, and then they will do little modification about external case to appear their customers, usually the products sell hot in our country, but they feel it is very urgly, on contrary, what we think it is urgly, but they would like to order thousands of them, amzing?
