When buying this brand of time attendance security door because they think that their home product quality is very good, of course, but also because a friend recommended me to say the product not only quality is very good, and their customer service service attitude is very good, I was thinking of this new product is the first time we use it when in use will be a lot of problems, if the time attendance security door customer service service good then we will have what the problem is that they can help with it, then think there immediately decided to buy the time attendance security door, then of course the facts also prove that my friend gave everything I said.